./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-theta/unwind3-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind3-100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51e84781857cfc73ae131a38742d9d6222707e54f6a010e2853f82c7770f5a96 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:09:43,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:09:43,319 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:09:43,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:09:43,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:09:43,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:09:43,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:09:43,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:09:43,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:09:43,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:09:43,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:09:43,358 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:09:43,359 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:09:43,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:09:43,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:09:43,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:09:43,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:09:43,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:09:43,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:09:43,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:09:43,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:09:43,367 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:09:43,367 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:09:43,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:09:43,367 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:09:43,368 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:09:43,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:09:43,368 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:09:43,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:09:43,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:09:43,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:09:43,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:09:43,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:09:43,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:09:43,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:09:43,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:09:43,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:09:43,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:09:43,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:09:43,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:09:43,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:09:43,373 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51e84781857cfc73ae131a38742d9d6222707e54f6a010e2853f82c7770f5a96 [2024-11-09 07:09:43,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:09:43,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:09:43,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:09:43,743 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:09:43,743 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:09:43,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind3-100.i [2024-11-09 07:09:45,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:09:45,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:09:45,543 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind3-100.i [2024-11-09 07:09:45,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83778369/65f59f7ff83742ea943ce8ce92c42ae3/FLAG1ebef470b [2024-11-09 07:09:45,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83778369/65f59f7ff83742ea943ce8ce92c42ae3 [2024-11-09 07:09:45,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:09:45,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:09:45,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:09:45,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:09:45,591 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:09:45,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:09:45" (1/1) ... [2024-11-09 07:09:45,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d6ddbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:45, skipping insertion in model container [2024-11-09 07:09:45,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:09:45" (1/1) ... [2024-11-09 07:09:45,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:09:46,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:09:46,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:09:46,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:09:46,146 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:09:46,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46 WrapperNode [2024-11-09 07:09:46,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:09:46,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:09:46,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:09:46,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:09:46,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,169 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,195 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2024-11-09 07:09:46,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:09:46,196 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:09:46,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:09:46,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:09:46,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,211 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:09:46,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:09:46,242 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:09:46,242 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:09:46,243 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (1/1) ... [2024-11-09 07:09:46,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:09:46,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:09:46,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:09:46,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:09:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:09:46,382 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-09 07:09:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-09 07:09:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-09 07:09:46,383 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-09 07:09:46,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:09:46,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:09:46,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:09:46,385 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:09:46,524 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:09:46,526 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:09:46,675 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:09:46,675 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:09:46,692 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:09:46,692 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:09:46,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:46 BoogieIcfgContainer [2024-11-09 07:09:46,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:09:46,695 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:09:46,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:09:46,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:09:46,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:09:45" (1/3) ... [2024-11-09 07:09:46,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5ae811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:46, skipping insertion in model container [2024-11-09 07:09:46,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:46" (2/3) ... [2024-11-09 07:09:46,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5ae811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:46, skipping insertion in model container [2024-11-09 07:09:46,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:46" (3/3) ... [2024-11-09 07:09:46,704 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind3-100.i [2024-11-09 07:09:46,723 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:09:46,723 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 07:09:46,724 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:09:46,785 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:46,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 106 transitions, 220 flow [2024-11-09 07:09:46,893 INFO L124 PetriNetUnfolderBase]: 12/156 cut-off events. [2024-11-09 07:09:46,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:46,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 12/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 93. Up to 4 conditions per place. [2024-11-09 07:09:46,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 106 transitions, 220 flow [2024-11-09 07:09:46,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 185 flow [2024-11-09 07:09:46,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:46,925 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:46,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 07:09:46,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:46,935 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:46,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:46,936 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:46,937 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:46,937 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:46,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:46,943 INFO L85 PathProgramCache]: Analyzing trace with hash 408147467, now seen corresponding path program 1 times [2024-11-09 07:09:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596972850] [2024-11-09 07:09:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:47,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:47,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596972850] [2024-11-09 07:09:47,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596972850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:47,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:47,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:47,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954807329] [2024-11-09 07:09:47,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:47,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:47,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:47,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:47,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:47,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 106 [2024-11-09 07:09:47,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:47,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:47,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 106 [2024-11-09 07:09:47,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:47,353 INFO L124 PetriNetUnfolderBase]: 5/124 cut-off events. [2024-11-09 07:09:47,353 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 07:09:47,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 124 events. 5/124 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 187 event pairs, 2 based on Foata normal form. 3/114 useless extension candidates. Maximal degree in co-relation 93. Up to 20 conditions per place. [2024-11-09 07:09:47,356 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 2 changer transitions 1/85 dead transitions. [2024-11-09 07:09:47,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 85 transitions, 203 flow [2024-11-09 07:09:47,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:47,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-11-09 07:09:47,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8647798742138365 [2024-11-09 07:09:47,375 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 185 flow. Second operand 3 states and 275 transitions. [2024-11-09 07:09:47,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 85 transitions, 203 flow [2024-11-09 07:09:47,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:47,383 INFO L231 Difference]: Finished difference. Result has 90 places, 84 transitions, 178 flow [2024-11-09 07:09:47,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=90, PETRI_TRANSITIONS=84} [2024-11-09 07:09:47,391 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2024-11-09 07:09:47,391 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 84 transitions, 178 flow [2024-11-09 07:09:47,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:47,392 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:47,393 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:47,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:09:47,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:47,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:47,394 INFO L85 PathProgramCache]: Analyzing trace with hash 69046650, now seen corresponding path program 1 times [2024-11-09 07:09:47,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:47,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623086596] [2024-11-09 07:09:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:47,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:47,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623086596] [2024-11-09 07:09:47,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623086596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:47,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:47,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:47,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187170159] [2024-11-09 07:09:47,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:47,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:47,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:47,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:47,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:47,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 106 [2024-11-09 07:09:47,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 84 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:47,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:47,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 106 [2024-11-09 07:09:47,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:47,561 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-09 07:09:47,561 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:09:47,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 110 events. 3/110 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 2/107 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2024-11-09 07:09:47,563 INFO L140 encePairwiseOnDemand]: 100/106 looper letters, 9 selfloop transitions, 1 changer transitions 24/79 dead transitions. [2024-11-09 07:09:47,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 192 flow [2024-11-09 07:09:47,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2024-11-09 07:09:47,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270440251572327 [2024-11-09 07:09:47,570 INFO L175 Difference]: Start difference. First operand has 90 places, 84 transitions, 178 flow. Second operand 3 states and 263 transitions. [2024-11-09 07:09:47,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 192 flow [2024-11-09 07:09:47,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:47,574 INFO L231 Difference]: Finished difference. Result has 84 places, 55 transitions, 116 flow [2024-11-09 07:09:47,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=84, PETRI_TRANSITIONS=55} [2024-11-09 07:09:47,575 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -6 predicate places. [2024-11-09 07:09:47,576 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 55 transitions, 116 flow [2024-11-09 07:09:47,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:47,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:47,579 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:47,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:09:47,580 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:47,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:47,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1156401811, now seen corresponding path program 1 times [2024-11-09 07:09:47,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:47,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744278863] [2024-11-09 07:09:47,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:47,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:09:47,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:47,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744278863] [2024-11-09 07:09:47,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744278863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:47,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:47,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:47,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933512885] [2024-11-09 07:09:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:47,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:47,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:47,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:47,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:47,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 106 [2024-11-09 07:09:47,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 55 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:47,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:47,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 106 [2024-11-09 07:09:47,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:47,873 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2024-11-09 07:09:47,873 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 07:09:47,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2024-11-09 07:09:47,878 INFO L140 encePairwiseOnDemand]: 102/106 looper letters, 5 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2024-11-09 07:09:47,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 130 flow [2024-11-09 07:09:47,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:47,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2024-11-09 07:09:47,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8608490566037735 [2024-11-09 07:09:47,884 INFO L175 Difference]: Start difference. First operand has 84 places, 55 transitions, 116 flow. Second operand 4 states and 365 transitions. [2024-11-09 07:09:47,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 130 flow [2024-11-09 07:09:47,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 129 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:47,887 INFO L231 Difference]: Finished difference. Result has 61 places, 54 transitions, 119 flow [2024-11-09 07:09:47,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=61, PETRI_TRANSITIONS=54} [2024-11-09 07:09:47,888 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -29 predicate places. [2024-11-09 07:09:47,888 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 54 transitions, 119 flow [2024-11-09 07:09:47,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:47,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:47,888 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:47,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:09:47,889 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:09:47,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:47,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1252743650, now seen corresponding path program 1 times [2024-11-09 07:09:47,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:47,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061343537] [2024-11-09 07:09:47,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:47,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:47,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:48,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:48,046 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:48,047 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-09 07:09:48,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-09 07:09:48,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-09 07:09:48,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-09 07:09:48,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-09 07:09:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-09 07:09:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 9 remaining) [2024-11-09 07:09:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-09 07:09:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-09 07:09:48,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:09:48,056 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:48,058 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:48,058 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 07:09:48,099 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:48,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 143 transitions, 306 flow [2024-11-09 07:09:48,127 INFO L124 PetriNetUnfolderBase]: 17/220 cut-off events. [2024-11-09 07:09:48,127 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 07:09:48,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 220 events. 17/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 439 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 231. Up to 6 conditions per place. [2024-11-09 07:09:48,129 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 143 transitions, 306 flow [2024-11-09 07:09:48,130 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 96 transitions, 205 flow [2024-11-09 07:09:48,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:48,136 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:48,136 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 07:09:48,139 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:48,141 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:48,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:48,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:48,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,143 INFO L85 PathProgramCache]: Analyzing trace with hash -852624597, now seen corresponding path program 1 times [2024-11-09 07:09:48,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383567804] [2024-11-09 07:09:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:48,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383567804] [2024-11-09 07:09:48,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383567804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:48,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327607834] [2024-11-09 07:09:48,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:48,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:48,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:48,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 143 [2024-11-09 07:09:48,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 143 [2024-11-09 07:09:48,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,256 INFO L124 PetriNetUnfolderBase]: 7/173 cut-off events. [2024-11-09 07:09:48,256 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 07:09:48,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 173 events. 7/173 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 330 event pairs, 3 based on Foata normal form. 4/160 useless extension candidates. Maximal degree in co-relation 150. Up to 27 conditions per place. [2024-11-09 07:09:48,260 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 12 selfloop transitions, 2 changer transitions 1/92 dead transitions. [2024-11-09 07:09:48,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 92 transitions, 225 flow [2024-11-09 07:09:48,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:48,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2024-11-09 07:09:48,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8531468531468531 [2024-11-09 07:09:48,263 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 205 flow. Second operand 3 states and 366 transitions. [2024-11-09 07:09:48,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 92 transitions, 225 flow [2024-11-09 07:09:48,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 92 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:48,267 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 198 flow [2024-11-09 07:09:48,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-11-09 07:09:48,269 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2024-11-09 07:09:48,270 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 198 flow [2024-11-09 07:09:48,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:09:48,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:48,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,272 INFO L85 PathProgramCache]: Analyzing trace with hash -102366455, now seen corresponding path program 1 times [2024-11-09 07:09:48,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197854654] [2024-11-09 07:09:48,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:48,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197854654] [2024-11-09 07:09:48,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197854654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:48,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287370179] [2024-11-09 07:09:48,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:48,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:48,342 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 143 [2024-11-09 07:09:48,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 198 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 143 [2024-11-09 07:09:48,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,376 INFO L124 PetriNetUnfolderBase]: 4/154 cut-off events. [2024-11-09 07:09:48,376 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 07:09:48,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 154 events. 4/154 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 246 event pairs, 0 based on Foata normal form. 3/150 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2024-11-09 07:09:48,378 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 10 selfloop transitions, 1 changer transitions 24/86 dead transitions. [2024-11-09 07:09:48,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 86 transitions, 214 flow [2024-11-09 07:09:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:48,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:48,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-09 07:09:48,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8111888111888111 [2024-11-09 07:09:48,380 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 198 flow. Second operand 3 states and 348 transitions. [2024-11-09 07:09:48,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 86 transitions, 214 flow [2024-11-09 07:09:48,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 86 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:48,382 INFO L231 Difference]: Finished difference. Result has 93 places, 62 transitions, 136 flow [2024-11-09 07:09:48,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=93, PETRI_TRANSITIONS=62} [2024-11-09 07:09:48,385 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -6 predicate places. [2024-11-09 07:09:48,385 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 62 transitions, 136 flow [2024-11-09 07:09:48,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,388 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:09:48,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:48,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,389 INFO L85 PathProgramCache]: Analyzing trace with hash 679949262, now seen corresponding path program 1 times [2024-11-09 07:09:48,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583220271] [2024-11-09 07:09:48,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 07:09:48,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583220271] [2024-11-09 07:09:48,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583220271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:48,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432695940] [2024-11-09 07:09:48,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:48,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:48,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:48,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 143 [2024-11-09 07:09:48,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 62 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 143 [2024-11-09 07:09:48,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,511 INFO L124 PetriNetUnfolderBase]: 0/81 cut-off events. [2024-11-09 07:09:48,511 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-09 07:09:48,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 81 events. 0/81 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 23 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2024-11-09 07:09:48,512 INFO L140 encePairwiseOnDemand]: 139/143 looper letters, 6 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2024-11-09 07:09:48,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 61 transitions, 152 flow [2024-11-09 07:09:48,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:48,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-09 07:09:48,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8566433566433567 [2024-11-09 07:09:48,514 INFO L175 Difference]: Start difference. First operand has 93 places, 62 transitions, 136 flow. Second operand 4 states and 490 transitions. [2024-11-09 07:09:48,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 61 transitions, 152 flow [2024-11-09 07:09:48,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 61 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:48,517 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 139 flow [2024-11-09 07:09:48,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-11-09 07:09:48,519 INFO L277 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-11-09 07:09:48,520 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 139 flow [2024-11-09 07:09:48,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,520 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:09:48,521 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:09:48,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1617747374, now seen corresponding path program 1 times [2024-11-09 07:09:48,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720239682] [2024-11-09 07:09:48,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:48,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:48,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:48,573 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:48,573 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-09 07:09:48,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-09 07:09:48,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-09 07:09:48,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-09 07:09:48,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-09 07:09:48,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-09 07:09:48,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-11-09 07:09:48,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-09 07:09:48,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-09 07:09:48,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-09 07:09:48,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:09:48,579 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:48,580 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:48,580 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 07:09:48,624 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:48,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 180 transitions, 396 flow [2024-11-09 07:09:48,660 INFO L124 PetriNetUnfolderBase]: 22/284 cut-off events. [2024-11-09 07:09:48,661 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:09:48,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 284 events. 22/284 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 644 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 301. Up to 8 conditions per place. [2024-11-09 07:09:48,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 180 transitions, 396 flow [2024-11-09 07:09:48,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 103 transitions, 227 flow [2024-11-09 07:09:48,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:48,666 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:48,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-09 07:09:48,669 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:48,669 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:48,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:48,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,670 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,670 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:48,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,671 INFO L85 PathProgramCache]: Analyzing trace with hash -397248341, now seen corresponding path program 1 times [2024-11-09 07:09:48,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061856542] [2024-11-09 07:09:48,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:48,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061856542] [2024-11-09 07:09:48,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061856542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:48,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416004992] [2024-11-09 07:09:48,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:48,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:48,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:48,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 180 [2024-11-09 07:09:48,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 180 [2024-11-09 07:09:48,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,777 INFO L124 PetriNetUnfolderBase]: 9/222 cut-off events. [2024-11-09 07:09:48,778 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 07:09:48,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 222 events. 9/222 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 481 event pairs, 4 based on Foata normal form. 9/210 useless extension candidates. Maximal degree in co-relation 211. Up to 34 conditions per place. [2024-11-09 07:09:48,779 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 13 selfloop transitions, 2 changer transitions 1/99 dead transitions. [2024-11-09 07:09:48,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 99 transitions, 249 flow [2024-11-09 07:09:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:48,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-11-09 07:09:48,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462962962962963 [2024-11-09 07:09:48,781 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 227 flow. Second operand 3 states and 457 transitions. [2024-11-09 07:09:48,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 99 transitions, 249 flow [2024-11-09 07:09:48,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 99 transitions, 246 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:48,786 INFO L231 Difference]: Finished difference. Result has 108 places, 98 transitions, 218 flow [2024-11-09 07:09:48,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=98} [2024-11-09 07:09:48,787 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, 0 predicate places. [2024-11-09 07:09:48,787 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 98 transitions, 218 flow [2024-11-09 07:09:48,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,788 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:09:48,788 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:48,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1789833283, now seen corresponding path program 1 times [2024-11-09 07:09:48,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552141364] [2024-11-09 07:09:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:48,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552141364] [2024-11-09 07:09:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552141364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351616423] [2024-11-09 07:09:48,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:48,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 180 [2024-11-09 07:09:48,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 98 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:48,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 180 [2024-11-09 07:09:48,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:48,887 INFO L124 PetriNetUnfolderBase]: 5/198 cut-off events. [2024-11-09 07:09:48,887 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 07:09:48,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 198 events. 5/198 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 362 event pairs, 0 based on Foata normal form. 4/193 useless extension candidates. Maximal degree in co-relation 224. Up to 25 conditions per place. [2024-11-09 07:09:48,889 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 11 selfloop transitions, 1 changer transitions 24/93 dead transitions. [2024-11-09 07:09:48,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 236 flow [2024-11-09 07:09:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2024-11-09 07:09:48,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8018518518518518 [2024-11-09 07:09:48,891 INFO L175 Difference]: Start difference. First operand has 108 places, 98 transitions, 218 flow. Second operand 3 states and 433 transitions. [2024-11-09 07:09:48,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 236 flow [2024-11-09 07:09:48,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 93 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:48,894 INFO L231 Difference]: Finished difference. Result has 102 places, 69 transitions, 156 flow [2024-11-09 07:09:48,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=102, PETRI_TRANSITIONS=69} [2024-11-09 07:09:48,895 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, -6 predicate places. [2024-11-09 07:09:48,895 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 69 transitions, 156 flow [2024-11-09 07:09:48,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:48,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:48,896 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:09:48,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:48,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:48,897 INFO L85 PathProgramCache]: Analyzing trace with hash -179872138, now seen corresponding path program 1 times [2024-11-09 07:09:48,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:48,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511001156] [2024-11-09 07:09:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:48,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 07:09:48,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:48,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511001156] [2024-11-09 07:09:48,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511001156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:48,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:48,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:48,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934713522] [2024-11-09 07:09:48,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:48,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:48,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:48,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:48,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:49,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 180 [2024-11-09 07:09:49,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 69 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 180 [2024-11-09 07:09:49,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,034 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2024-11-09 07:09:49,035 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-09 07:09:49,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 101 events. 0/101 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 36 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2024-11-09 07:09:49,035 INFO L140 encePairwiseOnDemand]: 176/180 looper letters, 7 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-09 07:09:49,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 68 transitions, 174 flow [2024-11-09 07:09:49,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:49,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 615 transitions. [2024-11-09 07:09:49,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8541666666666666 [2024-11-09 07:09:49,037 INFO L175 Difference]: Start difference. First operand has 102 places, 69 transitions, 156 flow. Second operand 4 states and 615 transitions. [2024-11-09 07:09:49,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 68 transitions, 174 flow [2024-11-09 07:09:49,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 68 transitions, 173 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:49,039 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 159 flow [2024-11-09 07:09:49,040 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=159, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-11-09 07:09:49,040 INFO L277 CegarLoopForPetriNet]: 108 programPoint places, -29 predicate places. [2024-11-09 07:09:49,040 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 159 flow [2024-11-09 07:09:49,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,042 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:09:49,042 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:09:49,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,043 INFO L85 PathProgramCache]: Analyzing trace with hash -558730614, now seen corresponding path program 1 times [2024-11-09 07:09:49,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749004587] [2024-11-09 07:09:49,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:49,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:49,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:49,090 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:49,090 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-09 07:09:49,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-09 07:09:49,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-09 07:09:49,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-09 07:09:49,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-09 07:09:49,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-09 07:09:49,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 11 remaining) [2024-11-09 07:09:49,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-09 07:09:49,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-09 07:09:49,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-09 07:09:49,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-09 07:09:49,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:09:49,093 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:49,094 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:49,094 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 07:09:49,141 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:49,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 217 transitions, 490 flow [2024-11-09 07:09:49,196 INFO L124 PetriNetUnfolderBase]: 27/348 cut-off events. [2024-11-09 07:09:49,196 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 07:09:49,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 348 events. 27/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 859 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 372. Up to 10 conditions per place. [2024-11-09 07:09:49,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 217 transitions, 490 flow [2024-11-09 07:09:49,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 110 transitions, 251 flow [2024-11-09 07:09:49,200 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:49,200 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:49,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 07:09:49,202 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:49,202 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:49,202 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:49,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,203 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:49,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1774276235, now seen corresponding path program 1 times [2024-11-09 07:09:49,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707474084] [2024-11-09 07:09:49,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:49,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707474084] [2024-11-09 07:09:49,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707474084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:49,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616229957] [2024-11-09 07:09:49,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:49,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:49,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:49,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 217 [2024-11-09 07:09:49,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 217 [2024-11-09 07:09:49,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,326 INFO L124 PetriNetUnfolderBase]: 11/271 cut-off events. [2024-11-09 07:09:49,327 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-09 07:09:49,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 271 events. 11/271 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 617 event pairs, 5 based on Foata normal form. 6/252 useless extension candidates. Maximal degree in co-relation 273. Up to 41 conditions per place. [2024-11-09 07:09:49,329 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 14 selfloop transitions, 2 changer transitions 1/106 dead transitions. [2024-11-09 07:09:49,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 106 transitions, 275 flow [2024-11-09 07:09:49,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2024-11-09 07:09:49,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8417818740399385 [2024-11-09 07:09:49,332 INFO L175 Difference]: Start difference. First operand has 117 places, 110 transitions, 251 flow. Second operand 3 states and 548 transitions. [2024-11-09 07:09:49,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 106 transitions, 275 flow [2024-11-09 07:09:49,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 106 transitions, 268 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:49,335 INFO L231 Difference]: Finished difference. Result has 117 places, 105 transitions, 238 flow [2024-11-09 07:09:49,336 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=117, PETRI_TRANSITIONS=105} [2024-11-09 07:09:49,337 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 0 predicate places. [2024-11-09 07:09:49,338 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 105 transitions, 238 flow [2024-11-09 07:09:49,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:09:49,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:49,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,340 INFO L85 PathProgramCache]: Analyzing trace with hash -698386538, now seen corresponding path program 1 times [2024-11-09 07:09:49,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546864681] [2024-11-09 07:09:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:49,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546864681] [2024-11-09 07:09:49,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546864681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:49,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918947937] [2024-11-09 07:09:49,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:49,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:49,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:49,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 217 [2024-11-09 07:09:49,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 105 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 217 [2024-11-09 07:09:49,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,454 INFO L124 PetriNetUnfolderBase]: 6/242 cut-off events. [2024-11-09 07:09:49,455 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 07:09:49,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 242 events. 6/242 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 458 event pairs, 0 based on Foata normal form. 5/236 useless extension candidates. Maximal degree in co-relation 278. Up to 30 conditions per place. [2024-11-09 07:09:49,456 INFO L140 encePairwiseOnDemand]: 211/217 looper letters, 12 selfloop transitions, 1 changer transitions 24/100 dead transitions. [2024-11-09 07:09:49,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 100 transitions, 258 flow [2024-11-09 07:09:49,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:49,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:49,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-09 07:09:49,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7956989247311828 [2024-11-09 07:09:49,458 INFO L175 Difference]: Start difference. First operand has 117 places, 105 transitions, 238 flow. Second operand 3 states and 518 transitions. [2024-11-09 07:09:49,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 100 transitions, 258 flow [2024-11-09 07:09:49,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 100 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:49,460 INFO L231 Difference]: Finished difference. Result has 111 places, 76 transitions, 176 flow [2024-11-09 07:09:49,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=111, PETRI_TRANSITIONS=76} [2024-11-09 07:09:49,462 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -6 predicate places. [2024-11-09 07:09:49,462 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 76 transitions, 176 flow [2024-11-09 07:09:49,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,463 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:09:49,463 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:49,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,463 INFO L85 PathProgramCache]: Analyzing trace with hash -643705595, now seen corresponding path program 1 times [2024-11-09 07:09:49,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406689012] [2024-11-09 07:09:49,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,549 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-09 07:09:49,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406689012] [2024-11-09 07:09:49,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406689012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:49,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332911302] [2024-11-09 07:09:49,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:49,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:49,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:49,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 217 [2024-11-09 07:09:49,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 76 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 184.5) internal successors, (738), 4 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 217 [2024-11-09 07:09:49,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,626 INFO L124 PetriNetUnfolderBase]: 0/121 cut-off events. [2024-11-09 07:09:49,626 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 07:09:49,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 121 events. 0/121 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 47 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2024-11-09 07:09:49,627 INFO L140 encePairwiseOnDemand]: 213/217 looper letters, 8 selfloop transitions, 3 changer transitions 0/75 dead transitions. [2024-11-09 07:09:49,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 75 transitions, 196 flow [2024-11-09 07:09:49,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:49,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 740 transitions. [2024-11-09 07:09:49,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8525345622119815 [2024-11-09 07:09:49,629 INFO L175 Difference]: Start difference. First operand has 111 places, 76 transitions, 176 flow. Second operand 4 states and 740 transitions. [2024-11-09 07:09:49,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 75 transitions, 196 flow [2024-11-09 07:09:49,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 75 transitions, 195 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:49,632 INFO L231 Difference]: Finished difference. Result has 88 places, 75 transitions, 179 flow [2024-11-09 07:09:49,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=88, PETRI_TRANSITIONS=75} [2024-11-09 07:09:49,632 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -29 predicate places. [2024-11-09 07:09:49,633 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 75 transitions, 179 flow [2024-11-09 07:09:49,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.5) internal successors, (738), 4 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,633 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:09:49,634 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:09:49,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2031627794, now seen corresponding path program 1 times [2024-11-09 07:09:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970806533] [2024-11-09 07:09:49,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:49,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:49,679 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:49,679 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:49,680 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-09 07:09:49,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-09 07:09:49,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-09 07:09:49,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-09 07:09:49,680 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-09 07:09:49,681 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-09 07:09:49,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 07:09:49,681 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:49,682 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:49,682 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-09 07:09:49,733 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:49,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 254 transitions, 588 flow [2024-11-09 07:09:49,801 INFO L124 PetriNetUnfolderBase]: 32/412 cut-off events. [2024-11-09 07:09:49,801 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-09 07:09:49,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 412 events. 32/412 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1048 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 444. Up to 12 conditions per place. [2024-11-09 07:09:49,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 254 transitions, 588 flow [2024-11-09 07:09:49,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 117 transitions, 277 flow [2024-11-09 07:09:49,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:49,808 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:49,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 07:09:49,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:49,809 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:49,809 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:49,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,809 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,809 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:49,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1366981835, now seen corresponding path program 1 times [2024-11-09 07:09:49,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219039930] [2024-11-09 07:09:49,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:49,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219039930] [2024-11-09 07:09:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219039930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034877126] [2024-11-09 07:09:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:49,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:49,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:49,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 254 [2024-11-09 07:09:49,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 117 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:49,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 254 [2024-11-09 07:09:49,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:49,934 INFO L124 PetriNetUnfolderBase]: 13/320 cut-off events. [2024-11-09 07:09:49,934 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 07:09:49,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 320 events. 13/320 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 752 event pairs, 6 based on Foata normal form. 7/298 useless extension candidates. Maximal degree in co-relation 336. Up to 48 conditions per place. [2024-11-09 07:09:49,936 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 15 selfloop transitions, 2 changer transitions 1/113 dead transitions. [2024-11-09 07:09:49,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 113 transitions, 303 flow [2024-11-09 07:09:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2024-11-09 07:09:49,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8385826771653543 [2024-11-09 07:09:49,938 INFO L175 Difference]: Start difference. First operand has 126 places, 117 transitions, 277 flow. Second operand 3 states and 639 transitions. [2024-11-09 07:09:49,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 113 transitions, 303 flow [2024-11-09 07:09:49,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 113 transitions, 290 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:49,941 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 258 flow [2024-11-09 07:09:49,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2024-11-09 07:09:49,942 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 0 predicate places. [2024-11-09 07:09:49,942 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 258 flow [2024-11-09 07:09:49,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:49,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:49,943 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:49,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:09:49,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:49,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:49,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1122993516, now seen corresponding path program 1 times [2024-11-09 07:09:49,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:49,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794480558] [2024-11-09 07:09:49,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:49,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:49,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:49,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:49,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794480558] [2024-11-09 07:09:49,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794480558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:49,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:49,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:49,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995167372] [2024-11-09 07:09:49,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:49,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:49,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:49,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:49,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 254 [2024-11-09 07:09:50,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 254 [2024-11-09 07:09:50,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,044 INFO L124 PetriNetUnfolderBase]: 7/286 cut-off events. [2024-11-09 07:09:50,045 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-09 07:09:50,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 286 events. 7/286 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 564 event pairs, 0 based on Foata normal form. 6/279 useless extension candidates. Maximal degree in co-relation 332. Up to 35 conditions per place. [2024-11-09 07:09:50,046 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 13 selfloop transitions, 1 changer transitions 24/107 dead transitions. [2024-11-09 07:09:50,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 107 transitions, 280 flow [2024-11-09 07:09:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2024-11-09 07:09:50,048 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7913385826771654 [2024-11-09 07:09:50,048 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 258 flow. Second operand 3 states and 603 transitions. [2024-11-09 07:09:50,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 107 transitions, 280 flow [2024-11-09 07:09:50,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 107 transitions, 276 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:50,050 INFO L231 Difference]: Finished difference. Result has 120 places, 83 transitions, 196 flow [2024-11-09 07:09:50,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=120, PETRI_TRANSITIONS=83} [2024-11-09 07:09:50,051 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, -6 predicate places. [2024-11-09 07:09:50,051 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 83 transitions, 196 flow [2024-11-09 07:09:50,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,052 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:09:50,052 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:50,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1199707931, now seen corresponding path program 1 times [2024-11-09 07:09:50,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489696941] [2024-11-09 07:09:50,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,114 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 07:09:50,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489696941] [2024-11-09 07:09:50,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489696941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:50,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109935001] [2024-11-09 07:09:50,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:50,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:50,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:50,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 254 [2024-11-09 07:09:50,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 83 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 215.75) internal successors, (863), 4 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 254 [2024-11-09 07:09:50,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,176 INFO L124 PetriNetUnfolderBase]: 0/141 cut-off events. [2024-11-09 07:09:50,176 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-09 07:09:50,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 141 events. 0/141 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 60 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2024-11-09 07:09:50,177 INFO L140 encePairwiseOnDemand]: 250/254 looper letters, 9 selfloop transitions, 3 changer transitions 0/82 dead transitions. [2024-11-09 07:09:50,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 218 flow [2024-11-09 07:09:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 865 transitions. [2024-11-09 07:09:50,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8513779527559056 [2024-11-09 07:09:50,179 INFO L175 Difference]: Start difference. First operand has 120 places, 83 transitions, 196 flow. Second operand 4 states and 865 transitions. [2024-11-09 07:09:50,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 218 flow [2024-11-09 07:09:50,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 82 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,182 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 199 flow [2024-11-09 07:09:50,183 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2024-11-09 07:09:50,183 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, -29 predicate places. [2024-11-09 07:09:50,183 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 199 flow [2024-11-09 07:09:50,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 215.75) internal successors, (863), 4 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,184 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:09:50,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 07:09:50,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,185 INFO L85 PathProgramCache]: Analyzing trace with hash 110991782, now seen corresponding path program 1 times [2024-11-09 07:09:50,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954546551] [2024-11-09 07:09:50,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:50,247 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-09 07:09:50,248 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-09 07:09:50,249 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-09 07:09:50,249 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-09 07:09:50,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:09:50,249 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:50,249 WARN L244 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:50,249 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2024-11-09 07:09:50,301 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:50,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 290 places, 291 transitions, 690 flow [2024-11-09 07:09:50,371 INFO L124 PetriNetUnfolderBase]: 37/476 cut-off events. [2024-11-09 07:09:50,372 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-09 07:09:50,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530 conditions, 476 events. 37/476 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1227 event pairs, 0 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 517. Up to 14 conditions per place. [2024-11-09 07:09:50,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 290 places, 291 transitions, 690 flow [2024-11-09 07:09:50,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 124 transitions, 305 flow [2024-11-09 07:09:50,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:50,377 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:50,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-09 07:09:50,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:50,378 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:50,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:50,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,379 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:50,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1619131541, now seen corresponding path program 1 times [2024-11-09 07:09:50,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441717465] [2024-11-09 07:09:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441717465] [2024-11-09 07:09:50,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441717465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126293064] [2024-11-09 07:09:50,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:50,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:50,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 291 [2024-11-09 07:09:50,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 124 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 291 [2024-11-09 07:09:50,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,513 INFO L124 PetriNetUnfolderBase]: 15/369 cut-off events. [2024-11-09 07:09:50,513 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2024-11-09 07:09:50,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 369 events. 15/369 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 891 event pairs, 7 based on Foata normal form. 8/344 useless extension candidates. Maximal degree in co-relation 400. Up to 55 conditions per place. [2024-11-09 07:09:50,516 INFO L140 encePairwiseOnDemand]: 285/291 looper letters, 16 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-11-09 07:09:50,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 120 transitions, 333 flow [2024-11-09 07:09:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2024-11-09 07:09:50,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8361970217640321 [2024-11-09 07:09:50,520 INFO L175 Difference]: Start difference. First operand has 135 places, 124 transitions, 305 flow. Second operand 3 states and 730 transitions. [2024-11-09 07:09:50,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 120 transitions, 333 flow [2024-11-09 07:09:50,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 120 transitions, 312 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,522 INFO L231 Difference]: Finished difference. Result has 135 places, 119 transitions, 278 flow [2024-11-09 07:09:50,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=135, PETRI_TRANSITIONS=119} [2024-11-09 07:09:50,523 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, 0 predicate places. [2024-11-09 07:09:50,523 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 119 transitions, 278 flow [2024-11-09 07:09:50,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 07:09:50,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:50,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1231313079, now seen corresponding path program 1 times [2024-11-09 07:09:50,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413160612] [2024-11-09 07:09:50,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413160612] [2024-11-09 07:09:50,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413160612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245357792] [2024-11-09 07:09:50,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:50,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:50,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 291 [2024-11-09 07:09:50,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 119 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 291 [2024-11-09 07:09:50,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,629 INFO L124 PetriNetUnfolderBase]: 8/330 cut-off events. [2024-11-09 07:09:50,630 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-09 07:09:50,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 330 events. 8/330 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 671 event pairs, 0 based on Foata normal form. 7/322 useless extension candidates. Maximal degree in co-relation 386. Up to 40 conditions per place. [2024-11-09 07:09:50,632 INFO L140 encePairwiseOnDemand]: 285/291 looper letters, 14 selfloop transitions, 1 changer transitions 24/114 dead transitions. [2024-11-09 07:09:50,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 114 transitions, 302 flow [2024-11-09 07:09:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-09 07:09:50,634 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7880870561282932 [2024-11-09 07:09:50,634 INFO L175 Difference]: Start difference. First operand has 135 places, 119 transitions, 278 flow. Second operand 3 states and 688 transitions. [2024-11-09 07:09:50,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 114 transitions, 302 flow [2024-11-09 07:09:50,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 114 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:50,637 INFO L231 Difference]: Finished difference. Result has 129 places, 90 transitions, 216 flow [2024-11-09 07:09:50,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=129, PETRI_TRANSITIONS=90} [2024-11-09 07:09:50,638 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -6 predicate places. [2024-11-09 07:09:50,638 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 90 transitions, 216 flow [2024-11-09 07:09:50,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,639 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 07:09:50,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:50,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1934850984, now seen corresponding path program 1 times [2024-11-09 07:09:50,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799566624] [2024-11-09 07:09:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2024-11-09 07:09:50,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799566624] [2024-11-09 07:09:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799566624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:50,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521725485] [2024-11-09 07:09:50,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:50,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:50,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:50,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:50,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 291 [2024-11-09 07:09:50,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 90 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:50,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 291 [2024-11-09 07:09:50,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:50,799 INFO L124 PetriNetUnfolderBase]: 0/161 cut-off events. [2024-11-09 07:09:50,799 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-11-09 07:09:50,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 161 events. 0/161 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 72 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2024-11-09 07:09:50,800 INFO L140 encePairwiseOnDemand]: 287/291 looper letters, 10 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-09 07:09:50,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 89 transitions, 240 flow [2024-11-09 07:09:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:50,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 990 transitions. [2024-11-09 07:09:50,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8505154639175257 [2024-11-09 07:09:50,803 INFO L175 Difference]: Start difference. First operand has 129 places, 90 transitions, 216 flow. Second operand 4 states and 990 transitions. [2024-11-09 07:09:50,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 89 transitions, 240 flow [2024-11-09 07:09:50,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 89 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:50,824 INFO L231 Difference]: Finished difference. Result has 106 places, 89 transitions, 219 flow [2024-11-09 07:09:50,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=291, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=106, PETRI_TRANSITIONS=89} [2024-11-09 07:09:50,824 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -29 predicate places. [2024-11-09 07:09:50,824 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 89 transitions, 219 flow [2024-11-09 07:09:50,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:50,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,825 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 07:09:50,825 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-09 07:09:50,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1309867686, now seen corresponding path program 1 times [2024-11-09 07:09:50,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689002843] [2024-11-09 07:09:50,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:50,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:50,861 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 14 remaining) [2024-11-09 07:09:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-09 07:09:50,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-09 07:09:50,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-09 07:09:50,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-09 07:09:50,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-09 07:09:50,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-09 07:09:50,862 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-09 07:09:50,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 07:09:50,862 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:50,863 WARN L244 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:50,863 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2024-11-09 07:09:50,914 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:50,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 328 transitions, 796 flow [2024-11-09 07:09:50,967 INFO L124 PetriNetUnfolderBase]: 42/540 cut-off events. [2024-11-09 07:09:50,968 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-09 07:09:50,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 540 events. 42/540 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1458 event pairs, 0 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 591. Up to 16 conditions per place. [2024-11-09 07:09:50,970 INFO L82 GeneralOperation]: Start removeDead. Operand has 327 places, 328 transitions, 796 flow [2024-11-09 07:09:50,972 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 131 transitions, 335 flow [2024-11-09 07:09:50,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:50,973 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:50,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-09 07:09:50,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:50,975 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:50,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:50,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:50,975 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:50,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:50,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1405870699, now seen corresponding path program 1 times [2024-11-09 07:09:50,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:50,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305137916] [2024-11-09 07:09:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:50,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:50,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305137916] [2024-11-09 07:09:50,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305137916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:50,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:50,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:50,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369047928] [2024-11-09 07:09:50,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:50,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 328 [2024-11-09 07:09:51,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 131 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 328 [2024-11-09 07:09:51,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,108 INFO L124 PetriNetUnfolderBase]: 17/418 cut-off events. [2024-11-09 07:09:51,108 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-09 07:09:51,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 418 events. 17/418 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1032 event pairs, 8 based on Foata normal form. 9/390 useless extension candidates. Maximal degree in co-relation 465. Up to 62 conditions per place. [2024-11-09 07:09:51,111 INFO L140 encePairwiseOnDemand]: 322/328 looper letters, 17 selfloop transitions, 2 changer transitions 1/127 dead transitions. [2024-11-09 07:09:51,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 127 transitions, 365 flow [2024-11-09 07:09:51,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 821 transitions. [2024-11-09 07:09:51,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.834349593495935 [2024-11-09 07:09:51,113 INFO L175 Difference]: Start difference. First operand has 144 places, 131 transitions, 335 flow. Second operand 3 states and 821 transitions. [2024-11-09 07:09:51,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 127 transitions, 365 flow [2024-11-09 07:09:51,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 127 transitions, 334 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:51,116 INFO L231 Difference]: Finished difference. Result has 144 places, 126 transitions, 298 flow [2024-11-09 07:09:51,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=144, PETRI_TRANSITIONS=126} [2024-11-09 07:09:51,118 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, 0 predicate places. [2024-11-09 07:09:51,118 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 126 transitions, 298 flow [2024-11-09 07:09:51,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,118 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 07:09:51,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:51,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2069565951, now seen corresponding path program 1 times [2024-11-09 07:09:51,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676615419] [2024-11-09 07:09:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:51,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676615419] [2024-11-09 07:09:51,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676615419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:51,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704286610] [2024-11-09 07:09:51,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 328 [2024-11-09 07:09:51,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 126 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 328 [2024-11-09 07:09:51,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,265 INFO L124 PetriNetUnfolderBase]: 9/374 cut-off events. [2024-11-09 07:09:51,265 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-09 07:09:51,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 374 events. 9/374 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 776 event pairs, 0 based on Foata normal form. 8/365 useless extension candidates. Maximal degree in co-relation 440. Up to 45 conditions per place. [2024-11-09 07:09:51,267 INFO L140 encePairwiseOnDemand]: 322/328 looper letters, 15 selfloop transitions, 1 changer transitions 24/121 dead transitions. [2024-11-09 07:09:51,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 121 transitions, 324 flow [2024-11-09 07:09:51,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 773 transitions. [2024-11-09 07:09:51,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7855691056910569 [2024-11-09 07:09:51,270 INFO L175 Difference]: Start difference. First operand has 144 places, 126 transitions, 298 flow. Second operand 3 states and 773 transitions. [2024-11-09 07:09:51,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 121 transitions, 324 flow [2024-11-09 07:09:51,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 121 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:51,272 INFO L231 Difference]: Finished difference. Result has 138 places, 97 transitions, 236 flow [2024-11-09 07:09:51,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=138, PETRI_TRANSITIONS=97} [2024-11-09 07:09:51,273 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -6 predicate places. [2024-11-09 07:09:51,273 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 97 transitions, 236 flow [2024-11-09 07:09:51,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,274 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 07:09:51,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:51,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,275 INFO L85 PathProgramCache]: Analyzing trace with hash 175791196, now seen corresponding path program 1 times [2024-11-09 07:09:51,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475322461] [2024-11-09 07:09:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-09 07:09:51,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475322461] [2024-11-09 07:09:51,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475322461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:51,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842064663] [2024-11-09 07:09:51,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:51,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:51,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:51,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 328 [2024-11-09 07:09:51,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 97 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 328 [2024-11-09 07:09:51,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,468 INFO L124 PetriNetUnfolderBase]: 0/181 cut-off events. [2024-11-09 07:09:51,468 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-09 07:09:51,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 181 events. 0/181 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 83 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2024-11-09 07:09:51,469 INFO L140 encePairwiseOnDemand]: 324/328 looper letters, 11 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2024-11-09 07:09:51,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 96 transitions, 262 flow [2024-11-09 07:09:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:51,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1115 transitions. [2024-11-09 07:09:51,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8498475609756098 [2024-11-09 07:09:51,473 INFO L175 Difference]: Start difference. First operand has 138 places, 97 transitions, 236 flow. Second operand 4 states and 1115 transitions. [2024-11-09 07:09:51,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 96 transitions, 262 flow [2024-11-09 07:09:51,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 96 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:51,475 INFO L231 Difference]: Finished difference. Result has 115 places, 96 transitions, 239 flow [2024-11-09 07:09:51,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=328, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=239, PETRI_PLACES=115, PETRI_TRANSITIONS=96} [2024-11-09 07:09:51,476 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -29 predicate places. [2024-11-09 07:09:51,476 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 96 transitions, 239 flow [2024-11-09 07:09:51,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 278.25) internal successors, (1113), 4 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,477 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,477 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 07:09:51,477 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-09 07:09:51,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash 677209714, now seen corresponding path program 1 times [2024-11-09 07:09:51,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860939961] [2024-11-09 07:09:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:51,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:51,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:51,530 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:51,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-09 07:09:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-09 07:09:51,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-09 07:09:51,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-09 07:09:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-09 07:09:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-09 07:09:51,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-09 07:09:51,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 07:09:51,532 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:51,533 WARN L244 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:51,533 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2024-11-09 07:09:51,584 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:51,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 364 places, 365 transitions, 906 flow [2024-11-09 07:09:51,639 INFO L124 PetriNetUnfolderBase]: 47/604 cut-off events. [2024-11-09 07:09:51,639 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-09 07:09:51,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 604 events. 47/604 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1587 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 666. Up to 18 conditions per place. [2024-11-09 07:09:51,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 364 places, 365 transitions, 906 flow [2024-11-09 07:09:51,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 138 transitions, 367 flow [2024-11-09 07:09:51,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:51,645 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:51,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 07:09:51,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:51,646 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:51,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:51,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,647 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:51,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1852053963, now seen corresponding path program 1 times [2024-11-09 07:09:51,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595188369] [2024-11-09 07:09:51,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:51,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595188369] [2024-11-09 07:09:51,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595188369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:51,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387280013] [2024-11-09 07:09:51,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,719 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 365 [2024-11-09 07:09:51,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 138 transitions, 367 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 365 [2024-11-09 07:09:51,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,792 INFO L124 PetriNetUnfolderBase]: 19/467 cut-off events. [2024-11-09 07:09:51,793 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-09 07:09:51,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 467 events. 19/467 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1173 event pairs, 9 based on Foata normal form. 10/436 useless extension candidates. Maximal degree in co-relation 531. Up to 69 conditions per place. [2024-11-09 07:09:51,797 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 18 selfloop transitions, 2 changer transitions 1/134 dead transitions. [2024-11-09 07:09:51,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 134 transitions, 399 flow [2024-11-09 07:09:51,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2024-11-09 07:09:51,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8328767123287671 [2024-11-09 07:09:51,799 INFO L175 Difference]: Start difference. First operand has 153 places, 138 transitions, 367 flow. Second operand 3 states and 912 transitions. [2024-11-09 07:09:51,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 134 transitions, 399 flow [2024-11-09 07:09:51,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 134 transitions, 356 flow, removed 21 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:51,803 INFO L231 Difference]: Finished difference. Result has 153 places, 133 transitions, 318 flow [2024-11-09 07:09:51,803 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=153, PETRI_TRANSITIONS=133} [2024-11-09 07:09:51,804 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, 0 predicate places. [2024-11-09 07:09:51,804 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 133 transitions, 318 flow [2024-11-09 07:09:51,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,805 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 07:09:51,805 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:51,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1391765100, now seen corresponding path program 1 times [2024-11-09 07:09:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157545481] [2024-11-09 07:09:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:51,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:51,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:51,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157545481] [2024-11-09 07:09:51,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157545481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:51,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:51,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:51,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455261620] [2024-11-09 07:09:51,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:51,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:51,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:51,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:51,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:51,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 365 [2024-11-09 07:09:51,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 133 transitions, 318 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:51,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 365 [2024-11-09 07:09:51,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:51,946 INFO L124 PetriNetUnfolderBase]: 10/418 cut-off events. [2024-11-09 07:09:51,947 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 07:09:51,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 418 events. 10/418 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 878 event pairs, 0 based on Foata normal form. 9/408 useless extension candidates. Maximal degree in co-relation 494. Up to 50 conditions per place. [2024-11-09 07:09:51,949 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 16 selfloop transitions, 1 changer transitions 24/128 dead transitions. [2024-11-09 07:09:51,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 128 transitions, 346 flow [2024-11-09 07:09:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:51,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:51,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 858 transitions. [2024-11-09 07:09:51,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7835616438356164 [2024-11-09 07:09:51,951 INFO L175 Difference]: Start difference. First operand has 153 places, 133 transitions, 318 flow. Second operand 3 states and 858 transitions. [2024-11-09 07:09:51,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 128 transitions, 346 flow [2024-11-09 07:09:51,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 128 transitions, 342 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:51,954 INFO L231 Difference]: Finished difference. Result has 147 places, 104 transitions, 256 flow [2024-11-09 07:09:51,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=147, PETRI_TRANSITIONS=104} [2024-11-09 07:09:51,955 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -6 predicate places. [2024-11-09 07:09:51,955 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 104 transitions, 256 flow [2024-11-09 07:09:51,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:51,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:51,956 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:51,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 07:09:51,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:51,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:51,956 INFO L85 PathProgramCache]: Analyzing trace with hash -485114169, now seen corresponding path program 1 times [2024-11-09 07:09:51,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:51,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821746969] [2024-11-09 07:09:51,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:51,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2024-11-09 07:09:52,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821746969] [2024-11-09 07:09:52,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821746969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:52,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19032384] [2024-11-09 07:09:52,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:52,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:52,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:52,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 365 [2024-11-09 07:09:52,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 104 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 365 [2024-11-09 07:09:52,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,115 INFO L124 PetriNetUnfolderBase]: 0/201 cut-off events. [2024-11-09 07:09:52,115 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-09 07:09:52,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 201 events. 0/201 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 95 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2024-11-09 07:09:52,115 INFO L140 encePairwiseOnDemand]: 361/365 looper letters, 12 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2024-11-09 07:09:52,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 103 transitions, 284 flow [2024-11-09 07:09:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:52,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:52,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1240 transitions. [2024-11-09 07:09:52,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8493150684931506 [2024-11-09 07:09:52,118 INFO L175 Difference]: Start difference. First operand has 147 places, 104 transitions, 256 flow. Second operand 4 states and 1240 transitions. [2024-11-09 07:09:52,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 103 transitions, 284 flow [2024-11-09 07:09:52,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 103 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,120 INFO L231 Difference]: Finished difference. Result has 124 places, 103 transitions, 259 flow [2024-11-09 07:09:52,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=124, PETRI_TRANSITIONS=103} [2024-11-09 07:09:52,121 INFO L277 CegarLoopForPetriNet]: 153 programPoint places, -29 predicate places. [2024-11-09 07:09:52,121 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 103 transitions, 259 flow [2024-11-09 07:09:52,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 309.5) internal successors, (1238), 4 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,122 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 07:09:52,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-09 07:09:52,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,122 INFO L85 PathProgramCache]: Analyzing trace with hash 54172266, now seen corresponding path program 1 times [2024-11-09 07:09:52,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243746437] [2024-11-09 07:09:52,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:52,163 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:52,163 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-09 07:09:52,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-09 07:09:52,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-09 07:09:52,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-09 07:09:52,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-09 07:09:52,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-09 07:09:52,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-09 07:09:52,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 07:09:52,165 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:52,165 WARN L244 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:52,165 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2024-11-09 07:09:52,225 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:52,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 401 places, 402 transitions, 1020 flow [2024-11-09 07:09:52,328 INFO L124 PetriNetUnfolderBase]: 52/668 cut-off events. [2024-11-09 07:09:52,329 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-09 07:09:52,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 668 events. 52/668 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1788 event pairs, 0 based on Foata normal form. 0/582 useless extension candidates. Maximal degree in co-relation 742. Up to 20 conditions per place. [2024-11-09 07:09:52,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 401 places, 402 transitions, 1020 flow [2024-11-09 07:09:52,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 145 transitions, 401 flow [2024-11-09 07:09:52,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:52,336 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:52,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-09 07:09:52,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:52,338 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:52,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:52,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,338 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:52,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash -280581749, now seen corresponding path program 1 times [2024-11-09 07:09:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166141703] [2024-11-09 07:09:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:52,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166141703] [2024-11-09 07:09:52,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166141703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:52,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235609081] [2024-11-09 07:09:52,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:52,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:52,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:52,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 402 [2024-11-09 07:09:52,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 145 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 402 [2024-11-09 07:09:52,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,486 INFO L124 PetriNetUnfolderBase]: 21/516 cut-off events. [2024-11-09 07:09:52,486 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-09 07:09:52,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 516 events. 21/516 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1328 event pairs, 10 based on Foata normal form. 21/492 useless extension candidates. Maximal degree in co-relation 598. Up to 76 conditions per place. [2024-11-09 07:09:52,490 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 19 selfloop transitions, 2 changer transitions 1/141 dead transitions. [2024-11-09 07:09:52,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 141 transitions, 435 flow [2024-11-09 07:09:52,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:52,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1003 transitions. [2024-11-09 07:09:52,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8316749585406302 [2024-11-09 07:09:52,493 INFO L175 Difference]: Start difference. First operand has 162 places, 145 transitions, 401 flow. Second operand 3 states and 1003 transitions. [2024-11-09 07:09:52,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 141 transitions, 435 flow [2024-11-09 07:09:52,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 141 transitions, 378 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,496 INFO L231 Difference]: Finished difference. Result has 162 places, 140 transitions, 338 flow [2024-11-09 07:09:52,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=162, PETRI_TRANSITIONS=140} [2024-11-09 07:09:52,496 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 0 predicate places. [2024-11-09 07:09:52,496 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 140 transitions, 338 flow [2024-11-09 07:09:52,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 07:09:52,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:52,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash -802089474, now seen corresponding path program 1 times [2024-11-09 07:09:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374465962] [2024-11-09 07:09:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:52,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374465962] [2024-11-09 07:09:52,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374465962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:52,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215021877] [2024-11-09 07:09:52,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:52,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:52,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:52,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 402 [2024-11-09 07:09:52,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 140 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 402 [2024-11-09 07:09:52,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,627 INFO L124 PetriNetUnfolderBase]: 11/462 cut-off events. [2024-11-09 07:09:52,627 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-09 07:09:52,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 462 events. 11/462 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1010 event pairs, 0 based on Foata normal form. 10/451 useless extension candidates. Maximal degree in co-relation 548. Up to 55 conditions per place. [2024-11-09 07:09:52,630 INFO L140 encePairwiseOnDemand]: 396/402 looper letters, 17 selfloop transitions, 1 changer transitions 24/135 dead transitions. [2024-11-09 07:09:52,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 135 transitions, 368 flow [2024-11-09 07:09:52,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:52,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2024-11-09 07:09:52,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7819237147595357 [2024-11-09 07:09:52,633 INFO L175 Difference]: Start difference. First operand has 162 places, 140 transitions, 338 flow. Second operand 3 states and 943 transitions. [2024-11-09 07:09:52,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 135 transitions, 368 flow [2024-11-09 07:09:52,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 135 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:52,635 INFO L231 Difference]: Finished difference. Result has 156 places, 111 transitions, 276 flow [2024-11-09 07:09:52,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=156, PETRI_TRANSITIONS=111} [2024-11-09 07:09:52,636 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, -6 predicate places. [2024-11-09 07:09:52,636 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 111 transitions, 276 flow [2024-11-09 07:09:52,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,637 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 07:09:52,637 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:52,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2083892025, now seen corresponding path program 1 times [2024-11-09 07:09:52,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411793143] [2024-11-09 07:09:52,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-09 07:09:52,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:52,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411793143] [2024-11-09 07:09:52,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411793143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:52,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:52,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:52,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511665340] [2024-11-09 07:09:52,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:52,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:52,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:52,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:52,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 402 [2024-11-09 07:09:52,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 111 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 340.75) internal successors, (1363), 4 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:52,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 402 [2024-11-09 07:09:52,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:52,822 INFO L124 PetriNetUnfolderBase]: 0/221 cut-off events. [2024-11-09 07:09:52,823 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2024-11-09 07:09:52,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 221 events. 0/221 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 108 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2024-11-09 07:09:52,823 INFO L140 encePairwiseOnDemand]: 398/402 looper letters, 13 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2024-11-09 07:09:52,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 110 transitions, 306 flow [2024-11-09 07:09:52,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1365 transitions. [2024-11-09 07:09:52,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2024-11-09 07:09:52,826 INFO L175 Difference]: Start difference. First operand has 156 places, 111 transitions, 276 flow. Second operand 4 states and 1365 transitions. [2024-11-09 07:09:52,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 110 transitions, 306 flow [2024-11-09 07:09:52,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 110 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:52,829 INFO L231 Difference]: Finished difference. Result has 133 places, 110 transitions, 279 flow [2024-11-09 07:09:52,829 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=133, PETRI_TRANSITIONS=110} [2024-11-09 07:09:52,829 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, -29 predicate places. [2024-11-09 07:09:52,829 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 110 transitions, 279 flow [2024-11-09 07:09:52,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 340.75) internal successors, (1363), 4 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:52,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:52,830 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:52,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-09 07:09:52,830 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-09 07:09:52,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:52,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1686447086, now seen corresponding path program 1 times [2024-11-09 07:09:52,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:52,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233109998] [2024-11-09 07:09:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:52,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,867 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:52,893 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:52,893 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:52,893 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-09 07:09:52,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-09 07:09:52,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-09 07:09:52,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-09 07:09:52,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-09 07:09:52,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-09 07:09:52,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 07:09:52,895 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:52,895 WARN L244 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:52,895 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2024-11-09 07:09:52,960 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:52,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 439 transitions, 1138 flow [2024-11-09 07:09:53,039 INFO L124 PetriNetUnfolderBase]: 57/732 cut-off events. [2024-11-09 07:09:53,039 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-09 07:09:53,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 840 conditions, 732 events. 57/732 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1939 event pairs, 0 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 819. Up to 22 conditions per place. [2024-11-09 07:09:53,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 439 transitions, 1138 flow [2024-11-09 07:09:53,045 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 152 transitions, 437 flow [2024-11-09 07:09:53,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:53,046 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:53,046 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 07:09:53,047 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:53,047 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:53,047 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:53,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:53,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,048 INFO L85 PathProgramCache]: Analyzing trace with hash -697069141, now seen corresponding path program 1 times [2024-11-09 07:09:53,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016609839] [2024-11-09 07:09:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:53,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016609839] [2024-11-09 07:09:53,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016609839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:53,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514394291] [2024-11-09 07:09:53,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:53,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:53,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:53,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 439 [2024-11-09 07:09:53,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 152 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 439 [2024-11-09 07:09:53,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:53,204 INFO L124 PetriNetUnfolderBase]: 23/565 cut-off events. [2024-11-09 07:09:53,204 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-09 07:09:53,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 565 events. 23/565 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1441 event pairs, 11 based on Foata normal form. 23/539 useless extension candidates. Maximal degree in co-relation 666. Up to 83 conditions per place. [2024-11-09 07:09:53,208 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 20 selfloop transitions, 2 changer transitions 1/148 dead transitions. [2024-11-09 07:09:53,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 148 transitions, 473 flow [2024-11-09 07:09:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:53,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1094 transitions. [2024-11-09 07:09:53,211 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8306757782839788 [2024-11-09 07:09:53,211 INFO L175 Difference]: Start difference. First operand has 171 places, 152 transitions, 437 flow. Second operand 3 states and 1094 transitions. [2024-11-09 07:09:53,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 148 transitions, 473 flow [2024-11-09 07:09:53,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 148 transitions, 400 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:53,214 INFO L231 Difference]: Finished difference. Result has 171 places, 147 transitions, 358 flow [2024-11-09 07:09:53,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=171, PETRI_TRANSITIONS=147} [2024-11-09 07:09:53,215 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, 0 predicate places. [2024-11-09 07:09:53,215 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 147 transitions, 358 flow [2024-11-09 07:09:53,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 357.3333333333333) internal successors, (1072), 3 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 07:09:53,216 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:53,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,216 INFO L85 PathProgramCache]: Analyzing trace with hash -217030475, now seen corresponding path program 1 times [2024-11-09 07:09:53,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973349206] [2024-11-09 07:09:53,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:53,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973349206] [2024-11-09 07:09:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973349206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:53,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468629200] [2024-11-09 07:09:53,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:53,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:53,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:53,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 439 [2024-11-09 07:09:53,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 147 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 439 [2024-11-09 07:09:53,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:53,391 INFO L124 PetriNetUnfolderBase]: 12/506 cut-off events. [2024-11-09 07:09:53,391 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-09 07:09:53,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 506 events. 12/506 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1067 event pairs, 0 based on Foata normal form. 11/494 useless extension candidates. Maximal degree in co-relation 602. Up to 60 conditions per place. [2024-11-09 07:09:53,394 INFO L140 encePairwiseOnDemand]: 433/439 looper letters, 18 selfloop transitions, 1 changer transitions 24/142 dead transitions. [2024-11-09 07:09:53,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 142 transitions, 390 flow [2024-11-09 07:09:53,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2024-11-09 07:09:53,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7805618830675778 [2024-11-09 07:09:53,397 INFO L175 Difference]: Start difference. First operand has 171 places, 147 transitions, 358 flow. Second operand 3 states and 1028 transitions. [2024-11-09 07:09:53,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 142 transitions, 390 flow [2024-11-09 07:09:53,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 142 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:53,401 INFO L231 Difference]: Finished difference. Result has 165 places, 118 transitions, 296 flow [2024-11-09 07:09:53,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=165, PETRI_TRANSITIONS=118} [2024-11-09 07:09:53,402 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, -6 predicate places. [2024-11-09 07:09:53,402 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 118 transitions, 296 flow [2024-11-09 07:09:53,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,403 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-09 07:09:53,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:53,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,404 INFO L85 PathProgramCache]: Analyzing trace with hash 928645458, now seen corresponding path program 1 times [2024-11-09 07:09:53,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927977425] [2024-11-09 07:09:53,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,502 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2024-11-09 07:09:53,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927977425] [2024-11-09 07:09:53,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927977425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:53,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867596067] [2024-11-09 07:09:53,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:53,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:53,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:53,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 439 [2024-11-09 07:09:53,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 118 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 439 [2024-11-09 07:09:53,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:53,604 INFO L124 PetriNetUnfolderBase]: 0/241 cut-off events. [2024-11-09 07:09:53,604 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-09 07:09:53,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 241 events. 0/241 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 120 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 0. Up to 13 conditions per place. [2024-11-09 07:09:53,605 INFO L140 encePairwiseOnDemand]: 435/439 looper letters, 14 selfloop transitions, 3 changer transitions 0/117 dead transitions. [2024-11-09 07:09:53,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 117 transitions, 328 flow [2024-11-09 07:09:53,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:53,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1490 transitions. [2024-11-09 07:09:53,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8485193621867881 [2024-11-09 07:09:53,610 INFO L175 Difference]: Start difference. First operand has 165 places, 118 transitions, 296 flow. Second operand 4 states and 1490 transitions. [2024-11-09 07:09:53,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 117 transitions, 328 flow [2024-11-09 07:09:53,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 117 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:53,613 INFO L231 Difference]: Finished difference. Result has 142 places, 117 transitions, 299 flow [2024-11-09 07:09:53,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=439, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=142, PETRI_TRANSITIONS=117} [2024-11-09 07:09:53,613 INFO L277 CegarLoopForPetriNet]: 171 programPoint places, -29 predicate places. [2024-11-09 07:09:53,614 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 117 transitions, 299 flow [2024-11-09 07:09:53,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,615 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-09 07:09:53,615 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-09 07:09:53,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash 234376286, now seen corresponding path program 1 times [2024-11-09 07:09:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304144539] [2024-11-09 07:09:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:53,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:53,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:53,669 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:53,669 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-09 07:09:53,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-09 07:09:53,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-09 07:09:53,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-09 07:09:53,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-09 07:09:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-09 07:09:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 18 remaining) [2024-11-09 07:09:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-09 07:09:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-09 07:09:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-09 07:09:53,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-09 07:09:53,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-09 07:09:53,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 07:09:53,672 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:53,672 WARN L244 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:53,672 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2024-11-09 07:09:53,741 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:53,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 475 places, 476 transitions, 1260 flow [2024-11-09 07:09:53,836 INFO L124 PetriNetUnfolderBase]: 62/796 cut-off events. [2024-11-09 07:09:53,836 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-09 07:09:53,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 920 conditions, 796 events. 62/796 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2148 event pairs, 0 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 897. Up to 24 conditions per place. [2024-11-09 07:09:53,841 INFO L82 GeneralOperation]: Start removeDead. Operand has 475 places, 476 transitions, 1260 flow [2024-11-09 07:09:53,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 159 transitions, 475 flow [2024-11-09 07:09:53,844 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:53,845 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:53,845 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-09 07:09:53,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:53,846 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:53,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:53,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:53,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:53,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:53,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:53,846 INFO L85 PathProgramCache]: Analyzing trace with hash 602591787, now seen corresponding path program 1 times [2024-11-09 07:09:53,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:53,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467318553] [2024-11-09 07:09:53,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:53,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467318553] [2024-11-09 07:09:53,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467318553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:53,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:53,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:53,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544746383] [2024-11-09 07:09:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:53,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:53,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:53,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:53,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:53,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 476 [2024-11-09 07:09:53,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 159 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:53,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:53,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 476 [2024-11-09 07:09:53,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,057 INFO L124 PetriNetUnfolderBase]: 25/614 cut-off events. [2024-11-09 07:09:54,057 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-09 07:09:54,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 614 events. 25/614 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1624 event pairs, 12 based on Foata normal form. 25/586 useless extension candidates. Maximal degree in co-relation 735. Up to 90 conditions per place. [2024-11-09 07:09:54,062 INFO L140 encePairwiseOnDemand]: 470/476 looper letters, 21 selfloop transitions, 2 changer transitions 1/155 dead transitions. [2024-11-09 07:09:54,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 155 transitions, 513 flow [2024-11-09 07:09:54,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1185 transitions. [2024-11-09 07:09:54,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298319327731093 [2024-11-09 07:09:54,065 INFO L175 Difference]: Start difference. First operand has 180 places, 159 transitions, 475 flow. Second operand 3 states and 1185 transitions. [2024-11-09 07:09:54,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 155 transitions, 513 flow [2024-11-09 07:09:54,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 155 transitions, 422 flow, removed 45 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:54,068 INFO L231 Difference]: Finished difference. Result has 180 places, 154 transitions, 378 flow [2024-11-09 07:09:54,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=180, PETRI_TRANSITIONS=154} [2024-11-09 07:09:54,068 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, 0 predicate places. [2024-11-09 07:09:54,068 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 154 transitions, 378 flow [2024-11-09 07:09:54,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,069 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-09 07:09:54,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:54,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1148025199, now seen corresponding path program 1 times [2024-11-09 07:09:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674362380] [2024-11-09 07:09:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:54,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674362380] [2024-11-09 07:09:54,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674362380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:54,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092992251] [2024-11-09 07:09:54,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:54,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:54,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:54,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 476 [2024-11-09 07:09:54,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 154 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 476 [2024-11-09 07:09:54,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,225 INFO L124 PetriNetUnfolderBase]: 13/550 cut-off events. [2024-11-09 07:09:54,225 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-09 07:09:54,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 550 events. 13/550 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1225 event pairs, 0 based on Foata normal form. 12/537 useless extension candidates. Maximal degree in co-relation 656. Up to 65 conditions per place. [2024-11-09 07:09:54,228 INFO L140 encePairwiseOnDemand]: 470/476 looper letters, 19 selfloop transitions, 1 changer transitions 24/149 dead transitions. [2024-11-09 07:09:54,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 149 transitions, 412 flow [2024-11-09 07:09:54,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:54,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1113 transitions. [2024-11-09 07:09:54,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7794117647058824 [2024-11-09 07:09:54,231 INFO L175 Difference]: Start difference. First operand has 180 places, 154 transitions, 378 flow. Second operand 3 states and 1113 transitions. [2024-11-09 07:09:54,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 149 transitions, 412 flow [2024-11-09 07:09:54,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 149 transitions, 408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:54,234 INFO L231 Difference]: Finished difference. Result has 174 places, 125 transitions, 316 flow [2024-11-09 07:09:54,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=174, PETRI_TRANSITIONS=125} [2024-11-09 07:09:54,235 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -6 predicate places. [2024-11-09 07:09:54,235 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 125 transitions, 316 flow [2024-11-09 07:09:54,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,236 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-09 07:09:54,236 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:54,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1081638734, now seen corresponding path program 1 times [2024-11-09 07:09:54,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995062258] [2024-11-09 07:09:54,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2024-11-09 07:09:54,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995062258] [2024-11-09 07:09:54,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995062258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:54,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610755359] [2024-11-09 07:09:54,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:54,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:54,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:54,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 476 [2024-11-09 07:09:54,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 125 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 476 [2024-11-09 07:09:54,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,416 INFO L124 PetriNetUnfolderBase]: 0/261 cut-off events. [2024-11-09 07:09:54,416 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-09 07:09:54,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 261 events. 0/261 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 131 event pairs, 0 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2024-11-09 07:09:54,417 INFO L140 encePairwiseOnDemand]: 472/476 looper letters, 15 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2024-11-09 07:09:54,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 124 transitions, 350 flow [2024-11-09 07:09:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:54,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1615 transitions. [2024-11-09 07:09:54,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2024-11-09 07:09:54,419 INFO L175 Difference]: Start difference. First operand has 174 places, 125 transitions, 316 flow. Second operand 4 states and 1615 transitions. [2024-11-09 07:09:54,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 124 transitions, 350 flow [2024-11-09 07:09:54,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 124 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:54,422 INFO L231 Difference]: Finished difference. Result has 151 places, 124 transitions, 319 flow [2024-11-09 07:09:54,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=476, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=151, PETRI_TRANSITIONS=124} [2024-11-09 07:09:54,423 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -29 predicate places. [2024-11-09 07:09:54,423 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 124 transitions, 319 flow [2024-11-09 07:09:54,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 403.25) internal successors, (1613), 4 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,424 INFO L204 CegarLoopForPetriNet]: trace histogram [12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-09 07:09:54,424 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-11-09 07:09:54,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1634999578, now seen corresponding path program 1 times [2024-11-09 07:09:54,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793787436] [2024-11-09 07:09:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:54,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:54,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:54,479 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-11-09 07:09:54,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-11-09 07:09:54,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-11-09 07:09:54,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-11-09 07:09:54,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-11-09 07:09:54,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-11-09 07:09:54,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-11-09 07:09:54,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-11-09 07:09:54,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-09 07:09:54,481 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:54,482 WARN L244 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:54,482 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2024-11-09 07:09:54,560 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:54,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 512 places, 513 transitions, 1386 flow [2024-11-09 07:09:54,675 INFO L124 PetriNetUnfolderBase]: 67/860 cut-off events. [2024-11-09 07:09:54,676 INFO L125 PetriNetUnfolderBase]: For 352/352 co-relation queries the response was YES. [2024-11-09 07:09:54,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 860 events. 67/860 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2340 event pairs, 0 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 976. Up to 26 conditions per place. [2024-11-09 07:09:54,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 512 places, 513 transitions, 1386 flow [2024-11-09 07:09:54,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 189 places, 166 transitions, 515 flow [2024-11-09 07:09:54,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:54,683 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:54,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-09 07:09:54,684 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:54,684 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:54,684 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:54,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,685 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:54,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,685 INFO L85 PathProgramCache]: Analyzing trace with hash -676566261, now seen corresponding path program 1 times [2024-11-09 07:09:54,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361955608] [2024-11-09 07:09:54,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:54,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361955608] [2024-11-09 07:09:54,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361955608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:54,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428822384] [2024-11-09 07:09:54,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:54,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:54,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 513 [2024-11-09 07:09:54,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 166 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 513 [2024-11-09 07:09:54,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:54,865 INFO L124 PetriNetUnfolderBase]: 27/663 cut-off events. [2024-11-09 07:09:54,866 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-09 07:09:54,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892 conditions, 663 events. 27/663 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1768 event pairs, 13 based on Foata normal form. 27/633 useless extension candidates. Maximal degree in co-relation 805. Up to 97 conditions per place. [2024-11-09 07:09:54,870 INFO L140 encePairwiseOnDemand]: 507/513 looper letters, 22 selfloop transitions, 2 changer transitions 1/162 dead transitions. [2024-11-09 07:09:54,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 162 transitions, 555 flow [2024-11-09 07:09:54,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:54,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:54,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1276 transitions. [2024-11-09 07:09:54,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8291098115659519 [2024-11-09 07:09:54,872 INFO L175 Difference]: Start difference. First operand has 189 places, 166 transitions, 515 flow. Second operand 3 states and 1276 transitions. [2024-11-09 07:09:54,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 162 transitions, 555 flow [2024-11-09 07:09:54,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 162 transitions, 444 flow, removed 55 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:54,876 INFO L231 Difference]: Finished difference. Result has 189 places, 161 transitions, 398 flow [2024-11-09 07:09:54,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=189, PETRI_TRANSITIONS=161} [2024-11-09 07:09:54,876 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, 0 predicate places. [2024-11-09 07:09:54,877 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 161 transitions, 398 flow [2024-11-09 07:09:54,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:54,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:54,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-09 07:09:54,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:54,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:54,878 INFO L85 PathProgramCache]: Analyzing trace with hash 699893650, now seen corresponding path program 1 times [2024-11-09 07:09:54,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798801829] [2024-11-09 07:09:54,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:54,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:54,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798801829] [2024-11-09 07:09:54,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798801829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:54,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:54,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:54,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532940173] [2024-11-09 07:09:54,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:54,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:54,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:54,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:54,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 513 [2024-11-09 07:09:54,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 161 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:54,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:54,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 513 [2024-11-09 07:09:54,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:55,032 INFO L124 PetriNetUnfolderBase]: 14/594 cut-off events. [2024-11-09 07:09:55,032 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-09 07:09:55,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 594 events. 14/594 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1334 event pairs, 0 based on Foata normal form. 13/580 useless extension candidates. Maximal degree in co-relation 710. Up to 70 conditions per place. [2024-11-09 07:09:55,036 INFO L140 encePairwiseOnDemand]: 507/513 looper letters, 20 selfloop transitions, 1 changer transitions 24/156 dead transitions. [2024-11-09 07:09:55,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 156 transitions, 434 flow [2024-11-09 07:09:55,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:55,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:55,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1198 transitions. [2024-11-09 07:09:55,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7784275503573749 [2024-11-09 07:09:55,038 INFO L175 Difference]: Start difference. First operand has 189 places, 161 transitions, 398 flow. Second operand 3 states and 1198 transitions. [2024-11-09 07:09:55,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 156 transitions, 434 flow [2024-11-09 07:09:55,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 156 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:55,042 INFO L231 Difference]: Finished difference. Result has 183 places, 132 transitions, 336 flow [2024-11-09 07:09:55,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=183, PETRI_TRANSITIONS=132} [2024-11-09 07:09:55,043 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -6 predicate places. [2024-11-09 07:09:55,043 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 132 transitions, 336 flow [2024-11-09 07:09:55,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,044 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,044 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-09 07:09:55,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:55,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1283705081, now seen corresponding path program 1 times [2024-11-09 07:09:55,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522771850] [2024-11-09 07:09:55,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2024-11-09 07:09:55,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:55,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522771850] [2024-11-09 07:09:55,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522771850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:55,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:55,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257056857] [2024-11-09 07:09:55,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:55,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:55,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:55,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 513 [2024-11-09 07:09:55,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 132 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 434.5) internal successors, (1738), 4 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:55,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 513 [2024-11-09 07:09:55,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:55,268 INFO L124 PetriNetUnfolderBase]: 0/281 cut-off events. [2024-11-09 07:09:55,268 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-09 07:09:55,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 281 events. 0/281 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 144 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 0. Up to 15 conditions per place. [2024-11-09 07:09:55,269 INFO L140 encePairwiseOnDemand]: 509/513 looper letters, 16 selfloop transitions, 3 changer transitions 0/131 dead transitions. [2024-11-09 07:09:55,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 131 transitions, 372 flow [2024-11-09 07:09:55,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:55,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:55,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1740 transitions. [2024-11-09 07:09:55,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.847953216374269 [2024-11-09 07:09:55,272 INFO L175 Difference]: Start difference. First operand has 183 places, 132 transitions, 336 flow. Second operand 4 states and 1740 transitions. [2024-11-09 07:09:55,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 131 transitions, 372 flow [2024-11-09 07:09:55,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 131 transitions, 371 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:55,274 INFO L231 Difference]: Finished difference. Result has 160 places, 131 transitions, 339 flow [2024-11-09 07:09:55,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=513, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=339, PETRI_PLACES=160, PETRI_TRANSITIONS=131} [2024-11-09 07:09:55,275 INFO L277 CegarLoopForPetriNet]: 189 programPoint places, -29 predicate places. [2024-11-09 07:09:55,275 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 131 transitions, 339 flow [2024-11-09 07:09:55,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 434.5) internal successors, (1738), 4 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,276 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-09 07:09:55,277 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 07:09:55,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1514053758, now seen corresponding path program 1 times [2024-11-09 07:09:55,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223340089] [2024-11-09 07:09:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:55,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:55,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:55,349 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:55,349 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-09 07:09:55,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-09 07:09:55,349 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-09 07:09:55,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-09 07:09:55,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-09 07:09:55,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-09 07:09:55,351 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:55,352 WARN L244 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:55,352 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2024-11-09 07:09:55,430 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:55,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 549 places, 550 transitions, 1516 flow [2024-11-09 07:09:55,549 INFO L124 PetriNetUnfolderBase]: 72/924 cut-off events. [2024-11-09 07:09:55,549 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-11-09 07:09:55,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 924 events. 72/924 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2635 event pairs, 0 based on Foata normal form. 0/806 useless extension candidates. Maximal degree in co-relation 1056. Up to 28 conditions per place. [2024-11-09 07:09:55,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 549 places, 550 transitions, 1516 flow [2024-11-09 07:09:55,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 173 transitions, 557 flow [2024-11-09 07:09:55,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:55,560 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:55,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-09 07:09:55,561 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:55,562 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:55,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:55,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,562 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:55,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash -239575989, now seen corresponding path program 1 times [2024-11-09 07:09:55,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715485919] [2024-11-09 07:09:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:55,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:55,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715485919] [2024-11-09 07:09:55,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715485919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:55,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:55,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931868032] [2024-11-09 07:09:55,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:55,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:55,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:55,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 550 [2024-11-09 07:09:55,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 173 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:55,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 550 [2024-11-09 07:09:55,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:55,852 INFO L124 PetriNetUnfolderBase]: 29/712 cut-off events. [2024-11-09 07:09:55,853 INFO L125 PetriNetUnfolderBase]: For 547/547 co-relation queries the response was YES. [2024-11-09 07:09:55,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 712 events. 29/712 cut-off events. For 547/547 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1912 event pairs, 14 based on Foata normal form. 29/680 useless extension candidates. Maximal degree in co-relation 876. Up to 104 conditions per place. [2024-11-09 07:09:55,858 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 23 selfloop transitions, 2 changer transitions 1/169 dead transitions. [2024-11-09 07:09:55,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 169 transitions, 599 flow [2024-11-09 07:09:55,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:55,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:55,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1367 transitions. [2024-11-09 07:09:55,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8284848484848485 [2024-11-09 07:09:55,862 INFO L175 Difference]: Start difference. First operand has 198 places, 173 transitions, 557 flow. Second operand 3 states and 1367 transitions. [2024-11-09 07:09:55,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 169 transitions, 599 flow [2024-11-09 07:09:55,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 169 transitions, 466 flow, removed 66 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:55,867 INFO L231 Difference]: Finished difference. Result has 198 places, 168 transitions, 418 flow [2024-11-09 07:09:55,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=418, PETRI_PLACES=198, PETRI_TRANSITIONS=168} [2024-11-09 07:09:55,868 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 0 predicate places. [2024-11-09 07:09:55,868 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 168 transitions, 418 flow [2024-11-09 07:09:55,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:55,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:55,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-09 07:09:55,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:55,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1031758776, now seen corresponding path program 1 times [2024-11-09 07:09:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:55,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035477920] [2024-11-09 07:09:55,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:55,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:55,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035477920] [2024-11-09 07:09:55,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035477920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:55,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:55,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:55,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293081990] [2024-11-09 07:09:55,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:55,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:55,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 550 [2024-11-09 07:09:55,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 168 transitions, 418 flow. Second operand has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:55,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:55,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 550 [2024-11-09 07:09:55,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,095 INFO L124 PetriNetUnfolderBase]: 15/638 cut-off events. [2024-11-09 07:09:56,096 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-11-09 07:09:56,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 638 events. 15/638 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1442 event pairs, 0 based on Foata normal form. 14/623 useless extension candidates. Maximal degree in co-relation 764. Up to 75 conditions per place. [2024-11-09 07:09:56,102 INFO L140 encePairwiseOnDemand]: 544/550 looper letters, 21 selfloop transitions, 1 changer transitions 24/163 dead transitions. [2024-11-09 07:09:56,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 163 transitions, 456 flow [2024-11-09 07:09:56,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1283 transitions. [2024-11-09 07:09:56,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7775757575757576 [2024-11-09 07:09:56,107 INFO L175 Difference]: Start difference. First operand has 198 places, 168 transitions, 418 flow. Second operand 3 states and 1283 transitions. [2024-11-09 07:09:56,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 163 transitions, 456 flow [2024-11-09 07:09:56,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 163 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:56,111 INFO L231 Difference]: Finished difference. Result has 192 places, 139 transitions, 356 flow [2024-11-09 07:09:56,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=192, PETRI_TRANSITIONS=139} [2024-11-09 07:09:56,111 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -6 predicate places. [2024-11-09 07:09:56,111 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 139 transitions, 356 flow [2024-11-09 07:09:56,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,112 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-09 07:09:56,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:56,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,113 INFO L85 PathProgramCache]: Analyzing trace with hash 999381447, now seen corresponding path program 1 times [2024-11-09 07:09:56,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801257199] [2024-11-09 07:09:56,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2024-11-09 07:09:56,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801257199] [2024-11-09 07:09:56,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801257199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:56,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581266753] [2024-11-09 07:09:56,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:56,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:56,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:56,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 461 out of 550 [2024-11-09 07:09:56,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 139 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 465.75) internal successors, (1863), 4 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:56,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 461 of 550 [2024-11-09 07:09:56,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,344 INFO L124 PetriNetUnfolderBase]: 0/301 cut-off events. [2024-11-09 07:09:56,345 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-09 07:09:56,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 301 events. 0/301 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 156 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2024-11-09 07:09:56,345 INFO L140 encePairwiseOnDemand]: 546/550 looper letters, 17 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-09 07:09:56,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 138 transitions, 394 flow [2024-11-09 07:09:56,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1865 transitions. [2024-11-09 07:09:56,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8477272727272728 [2024-11-09 07:09:56,349 INFO L175 Difference]: Start difference. First operand has 192 places, 139 transitions, 356 flow. Second operand 4 states and 1865 transitions. [2024-11-09 07:09:56,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 138 transitions, 394 flow [2024-11-09 07:09:56,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 138 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:56,352 INFO L231 Difference]: Finished difference. Result has 169 places, 138 transitions, 359 flow [2024-11-09 07:09:56,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=550, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=169, PETRI_TRANSITIONS=138} [2024-11-09 07:09:56,352 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, -29 predicate places. [2024-11-09 07:09:56,352 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 138 transitions, 359 flow [2024-11-09 07:09:56,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 465.75) internal successors, (1863), 4 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,353 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,353 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-09 07:09:56,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2024-11-09 07:09:56,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,354 INFO L85 PathProgramCache]: Analyzing trace with hash -875193098, now seen corresponding path program 1 times [2024-11-09 07:09:56,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776208581] [2024-11-09 07:09:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:56,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:56,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:56,425 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:56,425 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-09 07:09:56,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-09 07:09:56,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-09 07:09:56,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-09 07:09:56,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-09 07:09:56,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-09 07:09:56,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-09 07:09:56,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-09 07:09:56,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-09 07:09:56,428 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:56,429 WARN L244 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:56,429 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2024-11-09 07:09:56,519 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:56,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 587 transitions, 1650 flow [2024-11-09 07:09:56,684 INFO L124 PetriNetUnfolderBase]: 77/988 cut-off events. [2024-11-09 07:09:56,684 INFO L125 PetriNetUnfolderBase]: For 546/546 co-relation queries the response was YES. [2024-11-09 07:09:56,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 988 events. 77/988 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2731 event pairs, 0 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1137. Up to 30 conditions per place. [2024-11-09 07:09:56,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 587 transitions, 1650 flow [2024-11-09 07:09:56,696 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 180 transitions, 601 flow [2024-11-09 07:09:56,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:56,698 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:56,698 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-09 07:09:56,699 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:56,699 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:56,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:56,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,699 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:56,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1913562603, now seen corresponding path program 1 times [2024-11-09 07:09:56,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17226752] [2024-11-09 07:09:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:56,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17226752] [2024-11-09 07:09:56,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17226752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:56,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143640746] [2024-11-09 07:09:56,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:56,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:56,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:56,804 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 587 [2024-11-09 07:09:56,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 180 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:56,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 587 [2024-11-09 07:09:56,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:56,928 INFO L124 PetriNetUnfolderBase]: 31/761 cut-off events. [2024-11-09 07:09:56,928 INFO L125 PetriNetUnfolderBase]: For 666/666 co-relation queries the response was YES. [2024-11-09 07:09:56,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 761 events. 31/761 cut-off events. For 666/666 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2054 event pairs, 15 based on Foata normal form. 31/727 useless extension candidates. Maximal degree in co-relation 948. Up to 111 conditions per place. [2024-11-09 07:09:56,935 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 24 selfloop transitions, 2 changer transitions 1/176 dead transitions. [2024-11-09 07:09:56,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 176 transitions, 645 flow [2024-11-09 07:09:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:56,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1458 transitions. [2024-11-09 07:09:56,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.82793867120954 [2024-11-09 07:09:56,938 INFO L175 Difference]: Start difference. First operand has 207 places, 180 transitions, 601 flow. Second operand 3 states and 1458 transitions. [2024-11-09 07:09:56,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 176 transitions, 645 flow [2024-11-09 07:09:56,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 176 transitions, 488 flow, removed 78 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:56,943 INFO L231 Difference]: Finished difference. Result has 207 places, 175 transitions, 438 flow [2024-11-09 07:09:56,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=207, PETRI_TRANSITIONS=175} [2024-11-09 07:09:56,943 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2024-11-09 07:09:56,944 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 175 transitions, 438 flow [2024-11-09 07:09:56,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:56,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:56,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:56,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-09 07:09:56,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:56,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash -152429821, now seen corresponding path program 1 times [2024-11-09 07:09:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:56,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706988149] [2024-11-09 07:09:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:56,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:56,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706988149] [2024-11-09 07:09:56,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706988149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959114991] [2024-11-09 07:09:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:57,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 587 [2024-11-09 07:09:57,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 175 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:57,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 587 [2024-11-09 07:09:57,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:57,137 INFO L124 PetriNetUnfolderBase]: 16/682 cut-off events. [2024-11-09 07:09:57,137 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-09 07:09:57,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 682 events. 16/682 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1550 event pairs, 0 based on Foata normal form. 15/666 useless extension candidates. Maximal degree in co-relation 818. Up to 80 conditions per place. [2024-11-09 07:09:57,142 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 22 selfloop transitions, 1 changer transitions 24/170 dead transitions. [2024-11-09 07:09:57,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 170 transitions, 478 flow [2024-11-09 07:09:57,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-09 07:09:57,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7768313458262351 [2024-11-09 07:09:57,144 INFO L175 Difference]: Start difference. First operand has 207 places, 175 transitions, 438 flow. Second operand 3 states and 1368 transitions. [2024-11-09 07:09:57,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 170 transitions, 478 flow [2024-11-09 07:09:57,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 170 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:57,148 INFO L231 Difference]: Finished difference. Result has 201 places, 146 transitions, 376 flow [2024-11-09 07:09:57,148 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=376, PETRI_PLACES=201, PETRI_TRANSITIONS=146} [2024-11-09 07:09:57,149 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -6 predicate places. [2024-11-09 07:09:57,149 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 146 transitions, 376 flow [2024-11-09 07:09:57,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,149 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-09 07:09:57,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:57,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1571525308, now seen corresponding path program 1 times [2024-11-09 07:09:57,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753086360] [2024-11-09 07:09:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:57,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2024-11-09 07:09:57,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:57,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753086360] [2024-11-09 07:09:57,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753086360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:57,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:57,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:57,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013804890] [2024-11-09 07:09:57,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:57,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:57,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:57,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:57,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:57,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 587 [2024-11-09 07:09:57,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 146 transitions, 376 flow. Second operand has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:57,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 587 [2024-11-09 07:09:57,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:57,347 INFO L124 PetriNetUnfolderBase]: 0/321 cut-off events. [2024-11-09 07:09:57,347 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-09 07:09:57,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 321 events. 0/321 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 168 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2024-11-09 07:09:57,348 INFO L140 encePairwiseOnDemand]: 583/587 looper letters, 18 selfloop transitions, 3 changer transitions 0/145 dead transitions. [2024-11-09 07:09:57,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 145 transitions, 416 flow [2024-11-09 07:09:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:57,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:57,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1990 transitions. [2024-11-09 07:09:57,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8475298126064736 [2024-11-09 07:09:57,351 INFO L175 Difference]: Start difference. First operand has 201 places, 146 transitions, 376 flow. Second operand 4 states and 1990 transitions. [2024-11-09 07:09:57,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 145 transitions, 416 flow [2024-11-09 07:09:57,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 145 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:57,354 INFO L231 Difference]: Finished difference. Result has 178 places, 145 transitions, 379 flow [2024-11-09 07:09:57,354 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=379, PETRI_PLACES=178, PETRI_TRANSITIONS=145} [2024-11-09 07:09:57,354 INFO L277 CegarLoopForPetriNet]: 207 programPoint places, -29 predicate places. [2024-11-09 07:09:57,354 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 145 transitions, 379 flow [2024-11-09 07:09:57,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 497.0) internal successors, (1988), 4 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,355 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-09 07:09:57,356 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2024-11-09 07:09:57,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1419189974, now seen corresponding path program 1 times [2024-11-09 07:09:57,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790458688] [2024-11-09 07:09:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:57,435 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:57,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:57,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:57,482 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2024-11-09 07:09:57,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2024-11-09 07:09:57,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2024-11-09 07:09:57,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2024-11-09 07:09:57,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2024-11-09 07:09:57,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2024-11-09 07:09:57,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2024-11-09 07:09:57,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2024-11-09 07:09:57,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2024-11-09 07:09:57,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2024-11-09 07:09:57,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2024-11-09 07:09:57,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2024-11-09 07:09:57,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2024-11-09 07:09:57,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2024-11-09 07:09:57,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2024-11-09 07:09:57,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2024-11-09 07:09:57,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-09 07:09:57,485 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:57,486 WARN L244 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:57,486 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2024-11-09 07:09:57,575 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:57,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 623 places, 624 transitions, 1788 flow [2024-11-09 07:09:57,710 INFO L124 PetriNetUnfolderBase]: 82/1052 cut-off events. [2024-11-09 07:09:57,710 INFO L125 PetriNetUnfolderBase]: For 665/665 co-relation queries the response was YES. [2024-11-09 07:09:57,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 1052 events. 82/1052 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3000 event pairs, 0 based on Foata normal form. 0/918 useless extension candidates. Maximal degree in co-relation 1219. Up to 32 conditions per place. [2024-11-09 07:09:57,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 623 places, 624 transitions, 1788 flow [2024-11-09 07:09:57,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 187 transitions, 647 flow [2024-11-09 07:09:57,723 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:57,724 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:57,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-09 07:09:57,725 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:57,725 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:57,725 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:57,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:57,725 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,725 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:09:57,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1487882219, now seen corresponding path program 1 times [2024-11-09 07:09:57,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:57,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175173165] [2024-11-09 07:09:57,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:57,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:57,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175173165] [2024-11-09 07:09:57,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175173165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:57,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:57,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:57,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823367550] [2024-11-09 07:09:57,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:57,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:57,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:57,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:57,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 624 [2024-11-09 07:09:57,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 187 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:57,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:57,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 624 [2024-11-09 07:09:57,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:57,979 INFO L124 PetriNetUnfolderBase]: 33/810 cut-off events. [2024-11-09 07:09:57,979 INFO L125 PetriNetUnfolderBase]: For 801/801 co-relation queries the response was YES. [2024-11-09 07:09:57,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 810 events. 33/810 cut-off events. For 801/801 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2194 event pairs, 16 based on Foata normal form. 33/774 useless extension candidates. Maximal degree in co-relation 1021. Up to 118 conditions per place. [2024-11-09 07:09:57,990 INFO L140 encePairwiseOnDemand]: 618/624 looper letters, 25 selfloop transitions, 2 changer transitions 1/183 dead transitions. [2024-11-09 07:09:57,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 183 transitions, 693 flow [2024-11-09 07:09:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:57,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:57,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1549 transitions. [2024-11-09 07:09:57,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8274572649572649 [2024-11-09 07:09:57,993 INFO L175 Difference]: Start difference. First operand has 216 places, 187 transitions, 647 flow. Second operand 3 states and 1549 transitions. [2024-11-09 07:09:57,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 183 transitions, 693 flow [2024-11-09 07:09:57,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 183 transitions, 510 flow, removed 91 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:57,999 INFO L231 Difference]: Finished difference. Result has 216 places, 182 transitions, 458 flow [2024-11-09 07:09:58,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=216, PETRI_TRANSITIONS=182} [2024-11-09 07:09:58,000 INFO L277 CegarLoopForPetriNet]: 216 programPoint places, 0 predicate places. [2024-11-09 07:09:58,000 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 182 transitions, 458 flow [2024-11-09 07:09:58,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,001 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:58,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-09 07:09:58,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:09:58,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1442295155, now seen corresponding path program 1 times [2024-11-09 07:09:58,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140989239] [2024-11-09 07:09:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:58,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:58,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140989239] [2024-11-09 07:09:58,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140989239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:58,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217277856] [2024-11-09 07:09:58,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:58,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:58,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 624 [2024-11-09 07:09:58,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 182 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:58,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 624 [2024-11-09 07:09:58,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:58,256 INFO L124 PetriNetUnfolderBase]: 17/726 cut-off events. [2024-11-09 07:09:58,256 INFO L125 PetriNetUnfolderBase]: For 149/149 co-relation queries the response was YES. [2024-11-09 07:09:58,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 726 events. 17/726 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1658 event pairs, 0 based on Foata normal form. 16/709 useless extension candidates. Maximal degree in co-relation 872. Up to 85 conditions per place. [2024-11-09 07:09:58,259 INFO L140 encePairwiseOnDemand]: 618/624 looper letters, 23 selfloop transitions, 1 changer transitions 24/177 dead transitions. [2024-11-09 07:09:58,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 177 transitions, 500 flow [2024-11-09 07:09:58,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:58,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2024-11-09 07:09:58,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7761752136752137 [2024-11-09 07:09:58,262 INFO L175 Difference]: Start difference. First operand has 216 places, 182 transitions, 458 flow. Second operand 3 states and 1453 transitions. [2024-11-09 07:09:58,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 177 transitions, 500 flow [2024-11-09 07:09:58,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 177 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:58,265 INFO L231 Difference]: Finished difference. Result has 210 places, 153 transitions, 396 flow [2024-11-09 07:09:58,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=210, PETRI_TRANSITIONS=153} [2024-11-09 07:09:58,266 INFO L277 CegarLoopForPetriNet]: 216 programPoint places, -6 predicate places. [2024-11-09 07:09:58,266 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 153 transitions, 396 flow [2024-11-09 07:09:58,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,267 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:58,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-09 07:09:58,267 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:09:58,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1531097976, now seen corresponding path program 1 times [2024-11-09 07:09:58,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69626562] [2024-11-09 07:09:58,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1590 trivial. 0 not checked. [2024-11-09 07:09:58,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:58,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69626562] [2024-11-09 07:09:58,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69626562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:58,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:58,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:58,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134615345] [2024-11-09 07:09:58,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:58,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:58,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:58,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 624 [2024-11-09 07:09:58,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 153 transitions, 396 flow. Second operand has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:58,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 624 [2024-11-09 07:09:58,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:58,515 INFO L124 PetriNetUnfolderBase]: 0/341 cut-off events. [2024-11-09 07:09:58,515 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-11-09 07:09:58,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 341 events. 0/341 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 180 event pairs, 0 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 0. Up to 18 conditions per place. [2024-11-09 07:09:58,516 INFO L140 encePairwiseOnDemand]: 620/624 looper letters, 19 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2024-11-09 07:09:58,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 152 transitions, 438 flow [2024-11-09 07:09:58,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:58,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2115 transitions. [2024-11-09 07:09:58,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8473557692307693 [2024-11-09 07:09:58,519 INFO L175 Difference]: Start difference. First operand has 210 places, 153 transitions, 396 flow. Second operand 4 states and 2115 transitions. [2024-11-09 07:09:58,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 152 transitions, 438 flow [2024-11-09 07:09:58,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 152 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:58,522 INFO L231 Difference]: Finished difference. Result has 187 places, 152 transitions, 399 flow [2024-11-09 07:09:58,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=399, PETRI_PLACES=187, PETRI_TRANSITIONS=152} [2024-11-09 07:09:58,523 INFO L277 CegarLoopForPetriNet]: 216 programPoint places, -29 predicate places. [2024-11-09 07:09:58,523 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 152 transitions, 399 flow [2024-11-09 07:09:58,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:58,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,524 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:58,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-09 07:09:58,524 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-09 07:09:58,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,524 INFO L85 PathProgramCache]: Analyzing trace with hash -148836734, now seen corresponding path program 1 times [2024-11-09 07:09:58,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090557522] [2024-11-09 07:09:58,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:58,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:58,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:58,615 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:58,615 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-09 07:09:58,615 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-09 07:09:58,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-09 07:09:58,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-09 07:09:58,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-09 07:09:58,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-09 07:09:58,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-09 07:09:58,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-09 07:09:58,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-09 07:09:58,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-09 07:09:58,618 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:58,619 WARN L244 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:58,619 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2024-11-09 07:09:58,722 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:09:58,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 660 places, 661 transitions, 1930 flow [2024-11-09 07:09:58,881 INFO L124 PetriNetUnfolderBase]: 87/1116 cut-off events. [2024-11-09 07:09:58,881 INFO L125 PetriNetUnfolderBase]: For 800/800 co-relation queries the response was YES. [2024-11-09 07:09:58,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1335 conditions, 1116 events. 87/1116 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3259 event pairs, 0 based on Foata normal form. 0/974 useless extension candidates. Maximal degree in co-relation 1302. Up to 34 conditions per place. [2024-11-09 07:09:58,890 INFO L82 GeneralOperation]: Start removeDead. Operand has 660 places, 661 transitions, 1930 flow [2024-11-09 07:09:58,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 194 transitions, 695 flow [2024-11-09 07:09:58,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:58,893 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:58,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 07:09:58,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:09:58,895 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:09:58,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:09:58,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:58,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:58,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:09:58,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:58,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1516617141, now seen corresponding path program 1 times [2024-11-09 07:09:58,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:58,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622873344] [2024-11-09 07:09:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:58,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:58,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622873344] [2024-11-09 07:09:58,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622873344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:58,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:58,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682100514] [2024-11-09 07:09:58,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:58,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:58,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:58,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:59,011 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 536 out of 661 [2024-11-09 07:09:59,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 194 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:59,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 536 of 661 [2024-11-09 07:09:59,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:59,245 INFO L124 PetriNetUnfolderBase]: 35/859 cut-off events. [2024-11-09 07:09:59,245 INFO L125 PetriNetUnfolderBase]: For 953/953 co-relation queries the response was YES. [2024-11-09 07:09:59,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 859 events. 35/859 cut-off events. For 953/953 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 2341 event pairs, 17 based on Foata normal form. 35/821 useless extension candidates. Maximal degree in co-relation 1095. Up to 125 conditions per place. [2024-11-09 07:09:59,253 INFO L140 encePairwiseOnDemand]: 655/661 looper letters, 26 selfloop transitions, 2 changer transitions 1/190 dead transitions. [2024-11-09 07:09:59,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 190 transitions, 743 flow [2024-11-09 07:09:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:59,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1640 transitions. [2024-11-09 07:09:59,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.827029752899647 [2024-11-09 07:09:59,257 INFO L175 Difference]: Start difference. First operand has 225 places, 194 transitions, 695 flow. Second operand 3 states and 1640 transitions. [2024-11-09 07:09:59,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 190 transitions, 743 flow [2024-11-09 07:09:59,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 190 transitions, 532 flow, removed 105 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:59,265 INFO L231 Difference]: Finished difference. Result has 225 places, 189 transitions, 478 flow [2024-11-09 07:09:59,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=225, PETRI_TRANSITIONS=189} [2024-11-09 07:09:59,266 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, 0 predicate places. [2024-11-09 07:09:59,266 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 189 transitions, 478 flow [2024-11-09 07:09:59,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 537.3333333333334) internal successors, (1612), 3 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,267 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:59,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-09 07:09:59,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:09:59,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1520966408, now seen corresponding path program 1 times [2024-11-09 07:09:59,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867195955] [2024-11-09 07:09:59,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:09:59,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:59,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867195955] [2024-11-09 07:09:59,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867195955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:59,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:59,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:59,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671944214] [2024-11-09 07:09:59,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:59,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:59,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 661 [2024-11-09 07:09:59,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 189 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:59,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 661 [2024-11-09 07:09:59,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:59,550 INFO L124 PetriNetUnfolderBase]: 18/770 cut-off events. [2024-11-09 07:09:59,550 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-09 07:09:59,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 770 events. 18/770 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1749 event pairs, 0 based on Foata normal form. 17/752 useless extension candidates. Maximal degree in co-relation 926. Up to 90 conditions per place. [2024-11-09 07:09:59,558 INFO L140 encePairwiseOnDemand]: 655/661 looper letters, 24 selfloop transitions, 1 changer transitions 24/184 dead transitions. [2024-11-09 07:09:59,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 184 transitions, 522 flow [2024-11-09 07:09:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:59,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:09:59,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1538 transitions. [2024-11-09 07:09:59,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7755925365607665 [2024-11-09 07:09:59,561 INFO L175 Difference]: Start difference. First operand has 225 places, 189 transitions, 478 flow. Second operand 3 states and 1538 transitions. [2024-11-09 07:09:59,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 184 transitions, 522 flow [2024-11-09 07:09:59,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 184 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:09:59,565 INFO L231 Difference]: Finished difference. Result has 219 places, 160 transitions, 416 flow [2024-11-09 07:09:59,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=219, PETRI_TRANSITIONS=160} [2024-11-09 07:09:59,566 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, -6 predicate places. [2024-11-09 07:09:59,566 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 160 transitions, 416 flow [2024-11-09 07:09:59,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 503.0) internal successors, (1509), 3 states have internal predecessors, (1509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,567 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:59,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-09 07:09:59,567 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:09:59,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1921524837, now seen corresponding path program 1 times [2024-11-09 07:09:59,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569042069] [2024-11-09 07:09:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1808 trivial. 0 not checked. [2024-11-09 07:09:59,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:09:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569042069] [2024-11-09 07:09:59,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569042069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:59,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:59,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:59,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194383898] [2024-11-09 07:09:59,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:59,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:59,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:09:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:59,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:59,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 661 [2024-11-09 07:09:59,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 160 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:09:59,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 661 [2024-11-09 07:09:59,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:09:59,864 INFO L124 PetriNetUnfolderBase]: 0/361 cut-off events. [2024-11-09 07:09:59,864 INFO L125 PetriNetUnfolderBase]: For 166/166 co-relation queries the response was YES. [2024-11-09 07:09:59,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 451 conditions, 361 events. 0/361 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 192 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 0. Up to 19 conditions per place. [2024-11-09 07:09:59,866 INFO L140 encePairwiseOnDemand]: 657/661 looper letters, 20 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2024-11-09 07:09:59,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 159 transitions, 460 flow [2024-11-09 07:09:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:59,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:09:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2240 transitions. [2024-11-09 07:09:59,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8472012102874432 [2024-11-09 07:09:59,869 INFO L175 Difference]: Start difference. First operand has 219 places, 160 transitions, 416 flow. Second operand 4 states and 2240 transitions. [2024-11-09 07:09:59,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 159 transitions, 460 flow [2024-11-09 07:09:59,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 159 transitions, 459 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:09:59,873 INFO L231 Difference]: Finished difference. Result has 196 places, 159 transitions, 419 flow [2024-11-09 07:09:59,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=661, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=419, PETRI_PLACES=196, PETRI_TRANSITIONS=159} [2024-11-09 07:09:59,874 INFO L277 CegarLoopForPetriNet]: 225 programPoint places, -29 predicate places. [2024-11-09 07:09:59,874 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 159 transitions, 419 flow [2024-11-09 07:09:59,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 559.5) internal successors, (2238), 4 states have internal predecessors, (2238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:09:59,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:09:59,875 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:59,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-09 07:09:59,875 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-09 07:09:59,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1484335782, now seen corresponding path program 1 times [2024-11-09 07:09:59,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:09:59,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389937389] [2024-11-09 07:09:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:59,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:09:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:09:59,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:09:59,989 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:09:59,989 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2024-11-09 07:09:59,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2024-11-09 07:09:59,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2024-11-09 07:09:59,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2024-11-09 07:09:59,989 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2024-11-09 07:09:59,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2024-11-09 07:09:59,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 24 remaining) [2024-11-09 07:09:59,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2024-11-09 07:09:59,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2024-11-09 07:09:59,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2024-11-09 07:09:59,990 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2024-11-09 07:09:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2024-11-09 07:09:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2024-11-09 07:09:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2024-11-09 07:09:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2024-11-09 07:09:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2024-11-09 07:09:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2024-11-09 07:09:59,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-09 07:09:59,992 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:09:59,993 WARN L244 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:09:59,993 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2024-11-09 07:10:00,110 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:00,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 697 places, 698 transitions, 2076 flow [2024-11-09 07:10:00,372 INFO L124 PetriNetUnfolderBase]: 92/1180 cut-off events. [2024-11-09 07:10:00,372 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-09 07:10:00,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 1180 events. 92/1180 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3256 event pairs, 0 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1386. Up to 36 conditions per place. [2024-11-09 07:10:00,380 INFO L82 GeneralOperation]: Start removeDead. Operand has 697 places, 698 transitions, 2076 flow [2024-11-09 07:10:00,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 201 transitions, 745 flow [2024-11-09 07:10:00,384 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:00,384 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:00,385 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-09 07:10:00,385 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:00,386 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:00,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:00,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:00,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:00,386 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:00,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1489999115, now seen corresponding path program 1 times [2024-11-09 07:10:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325439832] [2024-11-09 07:10:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:00,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:00,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325439832] [2024-11-09 07:10:00,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325439832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:00,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:00,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71188790] [2024-11-09 07:10:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:00,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:00,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:00,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:00,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:00,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 566 out of 698 [2024-11-09 07:10:00,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 201 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:00,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 566 of 698 [2024-11-09 07:10:00,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:00,669 INFO L124 PetriNetUnfolderBase]: 37/908 cut-off events. [2024-11-09 07:10:00,670 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-11-09 07:10:00,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 908 events. 37/908 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2442 event pairs, 18 based on Foata normal form. 19/850 useless extension candidates. Maximal degree in co-relation 1170. Up to 132 conditions per place. [2024-11-09 07:10:00,679 INFO L140 encePairwiseOnDemand]: 692/698 looper letters, 27 selfloop transitions, 2 changer transitions 1/197 dead transitions. [2024-11-09 07:10:00,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 197 transitions, 795 flow [2024-11-09 07:10:00,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:00,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:00,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1731 transitions. [2024-11-09 07:10:00,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.826647564469914 [2024-11-09 07:10:00,682 INFO L175 Difference]: Start difference. First operand has 234 places, 201 transitions, 745 flow. Second operand 3 states and 1731 transitions. [2024-11-09 07:10:00,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 197 transitions, 795 flow [2024-11-09 07:10:00,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 197 transitions, 554 flow, removed 120 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:00,687 INFO L231 Difference]: Finished difference. Result has 234 places, 196 transitions, 498 flow [2024-11-09 07:10:00,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=234, PETRI_TRANSITIONS=196} [2024-11-09 07:10:00,688 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, 0 predicate places. [2024-11-09 07:10:00,688 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 196 transitions, 498 flow [2024-11-09 07:10:00,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.3333333333334) internal successors, (1702), 3 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:00,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:00,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-09 07:10:00,689 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:00,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:00,690 INFO L85 PathProgramCache]: Analyzing trace with hash 83583938, now seen corresponding path program 1 times [2024-11-09 07:10:00,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:00,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695868352] [2024-11-09 07:10:00,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:00,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:00,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:00,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695868352] [2024-11-09 07:10:00,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695868352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:00,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:00,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510065332] [2024-11-09 07:10:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:00,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:00,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:00,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:00,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:00,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 530 out of 698 [2024-11-09 07:10:00,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 196 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:00,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 530 of 698 [2024-11-09 07:10:00,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:00,926 INFO L124 PetriNetUnfolderBase]: 19/814 cut-off events. [2024-11-09 07:10:00,926 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-09 07:10:00,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 814 events. 19/814 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1834 event pairs, 0 based on Foata normal form. 18/795 useless extension candidates. Maximal degree in co-relation 980. Up to 95 conditions per place. [2024-11-09 07:10:00,933 INFO L140 encePairwiseOnDemand]: 692/698 looper letters, 25 selfloop transitions, 1 changer transitions 24/191 dead transitions. [2024-11-09 07:10:00,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 191 transitions, 544 flow [2024-11-09 07:10:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:00,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:00,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1623 transitions. [2024-11-09 07:10:00,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7750716332378224 [2024-11-09 07:10:00,936 INFO L175 Difference]: Start difference. First operand has 234 places, 196 transitions, 498 flow. Second operand 3 states and 1623 transitions. [2024-11-09 07:10:00,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 191 transitions, 544 flow [2024-11-09 07:10:00,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 191 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:00,940 INFO L231 Difference]: Finished difference. Result has 228 places, 167 transitions, 436 flow [2024-11-09 07:10:00,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=228, PETRI_TRANSITIONS=167} [2024-11-09 07:10:00,941 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -6 predicate places. [2024-11-09 07:10:00,941 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 167 transitions, 436 flow [2024-11-09 07:10:00,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 531.0) internal successors, (1593), 3 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:00,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:00,942 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:00,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-09 07:10:00,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:00,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1395062075, now seen corresponding path program 1 times [2024-11-09 07:10:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:00,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373591359] [2024-11-09 07:10:00,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2040 trivial. 0 not checked. [2024-11-09 07:10:01,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:01,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373591359] [2024-11-09 07:10:01,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373591359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:01,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:01,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:01,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858856134] [2024-11-09 07:10:01,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:01,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:01,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:01,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:01,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:01,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 698 [2024-11-09 07:10:01,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 167 transitions, 436 flow. Second operand has 4 states, 4 states have (on average 590.75) internal successors, (2363), 4 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:01,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 698 [2024-11-09 07:10:01,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:01,162 INFO L124 PetriNetUnfolderBase]: 0/381 cut-off events. [2024-11-09 07:10:01,162 INFO L125 PetriNetUnfolderBase]: For 185/185 co-relation queries the response was YES. [2024-11-09 07:10:01,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 381 events. 0/381 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 203 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2024-11-09 07:10:01,163 INFO L140 encePairwiseOnDemand]: 694/698 looper letters, 21 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2024-11-09 07:10:01,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 166 transitions, 482 flow [2024-11-09 07:10:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:01,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2365 transitions. [2024-11-09 07:10:01,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8470630372492837 [2024-11-09 07:10:01,167 INFO L175 Difference]: Start difference. First operand has 228 places, 167 transitions, 436 flow. Second operand 4 states and 2365 transitions. [2024-11-09 07:10:01,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 166 transitions, 482 flow [2024-11-09 07:10:01,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 166 transitions, 481 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:01,171 INFO L231 Difference]: Finished difference. Result has 205 places, 166 transitions, 439 flow [2024-11-09 07:10:01,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=698, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=439, PETRI_PLACES=205, PETRI_TRANSITIONS=166} [2024-11-09 07:10:01,171 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, -29 predicate places. [2024-11-09 07:10:01,172 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 166 transitions, 439 flow [2024-11-09 07:10:01,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 590.75) internal successors, (2363), 4 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:01,173 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:01,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-09 07:10:01,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-09 07:10:01,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1642505026, now seen corresponding path program 1 times [2024-11-09 07:10:01,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:01,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500570592] [2024-11-09 07:10:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:01,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:01,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:01,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:01,293 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 25 remaining) [2024-11-09 07:10:01,294 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-09 07:10:01,295 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-09 07:10:01,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-09 07:10:01,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-09 07:10:01,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-09 07:10:01,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-09 07:10:01,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-09 07:10:01,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-09 07:10:01,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-09 07:10:01,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-09 07:10:01,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-09 07:10:01,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-09 07:10:01,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-09 07:10:01,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-09 07:10:01,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-09 07:10:01,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-09 07:10:01,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-09 07:10:01,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-09 07:10:01,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-09 07:10:01,299 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:01,299 WARN L244 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:01,299 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2024-11-09 07:10:01,425 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:01,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 734 places, 735 transitions, 2226 flow [2024-11-09 07:10:01,607 INFO L124 PetriNetUnfolderBase]: 97/1244 cut-off events. [2024-11-09 07:10:01,608 INFO L125 PetriNetUnfolderBase]: For 1122/1122 co-relation queries the response was YES. [2024-11-09 07:10:01,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 1244 events. 97/1244 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3589 event pairs, 0 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 1471. Up to 38 conditions per place. [2024-11-09 07:10:01,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 734 places, 735 transitions, 2226 flow [2024-11-09 07:10:01,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 208 transitions, 797 flow [2024-11-09 07:10:01,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:01,619 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:01,619 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-09 07:10:01,620 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:01,621 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:01,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:01,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:01,621 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:01,621 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:01,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:01,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1917796395, now seen corresponding path program 1 times [2024-11-09 07:10:01,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:01,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158806207] [2024-11-09 07:10:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:01,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:01,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:01,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:01,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158806207] [2024-11-09 07:10:01,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158806207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:01,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:01,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:01,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709118184] [2024-11-09 07:10:01,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:01,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:01,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:01,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:01,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:01,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 735 [2024-11-09 07:10:01,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 208 transitions, 797 flow. Second operand has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:01,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 735 [2024-11-09 07:10:01,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:01,896 INFO L124 PetriNetUnfolderBase]: 39/957 cut-off events. [2024-11-09 07:10:01,896 INFO L125 PetriNetUnfolderBase]: For 1312/1312 co-relation queries the response was YES. [2024-11-09 07:10:01,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1345 conditions, 957 events. 39/957 cut-off events. For 1312/1312 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2576 event pairs, 19 based on Foata normal form. 20/896 useless extension candidates. Maximal degree in co-relation 1246. Up to 139 conditions per place. [2024-11-09 07:10:01,909 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 28 selfloop transitions, 2 changer transitions 1/204 dead transitions. [2024-11-09 07:10:01,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 204 transitions, 849 flow [2024-11-09 07:10:01,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:01,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:01,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1822 transitions. [2024-11-09 07:10:01,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8263038548752835 [2024-11-09 07:10:01,912 INFO L175 Difference]: Start difference. First operand has 243 places, 208 transitions, 797 flow. Second operand 3 states and 1822 transitions. [2024-11-09 07:10:01,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 204 transitions, 849 flow [2024-11-09 07:10:01,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 204 transitions, 576 flow, removed 136 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:01,918 INFO L231 Difference]: Finished difference. Result has 243 places, 203 transitions, 518 flow [2024-11-09 07:10:01,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=243, PETRI_TRANSITIONS=203} [2024-11-09 07:10:01,919 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, 0 predicate places. [2024-11-09 07:10:01,919 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 203 transitions, 518 flow [2024-11-09 07:10:01,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.3333333333334) internal successors, (1792), 3 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:01,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:01,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:01,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-09 07:10:01,920 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:01,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:01,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1425115041, now seen corresponding path program 1 times [2024-11-09 07:10:01,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:01,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470675718] [2024-11-09 07:10:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:01,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:01,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:01,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470675718] [2024-11-09 07:10:01,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470675718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:01,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:01,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:01,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543403001] [2024-11-09 07:10:01,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:01,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:01,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:01,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:01,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:02,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 735 [2024-11-09 07:10:02,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 203 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:02,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 735 [2024-11-09 07:10:02,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:02,147 INFO L124 PetriNetUnfolderBase]: 20/858 cut-off events. [2024-11-09 07:10:02,147 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-09 07:10:02,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 858 events. 20/858 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 1933 event pairs, 0 based on Foata normal form. 19/838 useless extension candidates. Maximal degree in co-relation 1034. Up to 100 conditions per place. [2024-11-09 07:10:02,155 INFO L140 encePairwiseOnDemand]: 729/735 looper letters, 26 selfloop transitions, 1 changer transitions 24/198 dead transitions. [2024-11-09 07:10:02,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 198 transitions, 566 flow [2024-11-09 07:10:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:02,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1708 transitions. [2024-11-09 07:10:02,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7746031746031746 [2024-11-09 07:10:02,158 INFO L175 Difference]: Start difference. First operand has 243 places, 203 transitions, 518 flow. Second operand 3 states and 1708 transitions. [2024-11-09 07:10:02,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 198 transitions, 566 flow [2024-11-09 07:10:02,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 198 transitions, 562 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:02,161 INFO L231 Difference]: Finished difference. Result has 237 places, 174 transitions, 456 flow [2024-11-09 07:10:02,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=237, PETRI_TRANSITIONS=174} [2024-11-09 07:10:02,162 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-11-09 07:10:02,162 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 174 transitions, 456 flow [2024-11-09 07:10:02,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 3 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:02,163 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:02,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-09 07:10:02,163 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:02,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:02,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1247993706, now seen corresponding path program 1 times [2024-11-09 07:10:02,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:02,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498173177] [2024-11-09 07:10:02,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:02,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2286 trivial. 0 not checked. [2024-11-09 07:10:02,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:02,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498173177] [2024-11-09 07:10:02,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498173177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:02,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:02,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:02,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103211942] [2024-11-09 07:10:02,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:02,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:02,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:02,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:02,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:02,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 616 out of 735 [2024-11-09 07:10:02,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 174 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:02,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 616 of 735 [2024-11-09 07:10:02,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:02,423 INFO L124 PetriNetUnfolderBase]: 0/401 cut-off events. [2024-11-09 07:10:02,423 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-11-09 07:10:02,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 401 events. 0/401 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 216 event pairs, 0 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 0. Up to 21 conditions per place. [2024-11-09 07:10:02,424 INFO L140 encePairwiseOnDemand]: 731/735 looper letters, 22 selfloop transitions, 3 changer transitions 0/173 dead transitions. [2024-11-09 07:10:02,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 173 transitions, 504 flow [2024-11-09 07:10:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:02,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2490 transitions. [2024-11-09 07:10:02,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8469387755102041 [2024-11-09 07:10:02,427 INFO L175 Difference]: Start difference. First operand has 237 places, 174 transitions, 456 flow. Second operand 4 states and 2490 transitions. [2024-11-09 07:10:02,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 173 transitions, 504 flow [2024-11-09 07:10:02,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 173 transitions, 503 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:02,430 INFO L231 Difference]: Finished difference. Result has 214 places, 173 transitions, 459 flow [2024-11-09 07:10:02,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=735, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=459, PETRI_PLACES=214, PETRI_TRANSITIONS=173} [2024-11-09 07:10:02,431 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -29 predicate places. [2024-11-09 07:10:02,431 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 173 transitions, 459 flow [2024-11-09 07:10:02,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 622.0) internal successors, (2488), 4 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:02,432 INFO L204 CegarLoopForPetriNet]: trace histogram [19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:02,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-09 07:10:02,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-09 07:10:02,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:02,433 INFO L85 PathProgramCache]: Analyzing trace with hash -14037490, now seen corresponding path program 1 times [2024-11-09 07:10:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:02,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770000492] [2024-11-09 07:10:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:02,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:02,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:02,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:02,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:02,532 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:02,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-09 07:10:02,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-11-09 07:10:02,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-11-09 07:10:02,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-11-09 07:10:02,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-11-09 07:10:02,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-11-09 07:10:02,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-11-09 07:10:02,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-09 07:10:02,535 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:02,535 WARN L244 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:02,535 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2024-11-09 07:10:02,633 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:02,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 771 places, 772 transitions, 2380 flow [2024-11-09 07:10:02,849 INFO L124 PetriNetUnfolderBase]: 102/1308 cut-off events. [2024-11-09 07:10:02,849 INFO L125 PetriNetUnfolderBase]: For 1311/1311 co-relation queries the response was YES. [2024-11-09 07:10:02,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 1308 events. 102/1308 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3777 event pairs, 0 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 1557. Up to 40 conditions per place. [2024-11-09 07:10:02,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 771 places, 772 transitions, 2380 flow [2024-11-09 07:10:02,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 215 transitions, 851 flow [2024-11-09 07:10:02,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:02,862 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:02,862 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-09 07:10:02,863 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:02,864 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:02,864 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:02,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:02,864 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:02,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:02,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:02,865 INFO L85 PathProgramCache]: Analyzing trace with hash -233225301, now seen corresponding path program 1 times [2024-11-09 07:10:02,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:02,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932621207] [2024-11-09 07:10:02,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:02,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:02,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:02,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932621207] [2024-11-09 07:10:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932621207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:02,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:02,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:02,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442810369] [2024-11-09 07:10:02,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:02,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:02,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:02,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:02,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:02,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 772 [2024-11-09 07:10:02,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 215 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:02,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:02,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 772 [2024-11-09 07:10:02,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:03,165 INFO L124 PetriNetUnfolderBase]: 41/1006 cut-off events. [2024-11-09 07:10:03,166 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-11-09 07:10:03,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1424 conditions, 1006 events. 41/1006 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2590 event pairs, 20 based on Foata normal form. 21/942 useless extension candidates. Maximal degree in co-relation 1323. Up to 146 conditions per place. [2024-11-09 07:10:03,177 INFO L140 encePairwiseOnDemand]: 766/772 looper letters, 29 selfloop transitions, 2 changer transitions 1/211 dead transitions. [2024-11-09 07:10:03,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 211 transitions, 905 flow [2024-11-09 07:10:03,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:03,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:03,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1913 transitions. [2024-11-09 07:10:03,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825993091537133 [2024-11-09 07:10:03,180 INFO L175 Difference]: Start difference. First operand has 252 places, 215 transitions, 851 flow. Second operand 3 states and 1913 transitions. [2024-11-09 07:10:03,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 211 transitions, 905 flow [2024-11-09 07:10:03,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 211 transitions, 598 flow, removed 153 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:03,186 INFO L231 Difference]: Finished difference. Result has 252 places, 210 transitions, 538 flow [2024-11-09 07:10:03,187 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=252, PETRI_TRANSITIONS=210} [2024-11-09 07:10:03,187 INFO L277 CegarLoopForPetriNet]: 252 programPoint places, 0 predicate places. [2024-11-09 07:10:03,187 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 210 transitions, 538 flow [2024-11-09 07:10:03,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,188 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:03,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:03,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-09 07:10:03,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:03,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1250592421, now seen corresponding path program 1 times [2024-11-09 07:10:03,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:03,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967569231] [2024-11-09 07:10:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:03,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:03,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:03,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967569231] [2024-11-09 07:10:03,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967569231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:03,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:03,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:03,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029823445] [2024-11-09 07:10:03,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:03,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:03,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:03,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:03,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:03,273 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 772 [2024-11-09 07:10:03,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 210 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:03,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 772 [2024-11-09 07:10:03,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:03,442 INFO L124 PetriNetUnfolderBase]: 21/902 cut-off events. [2024-11-09 07:10:03,443 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-09 07:10:03,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 902 events. 21/902 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 1934 event pairs, 0 based on Foata normal form. 20/881 useless extension candidates. Maximal degree in co-relation 1088. Up to 105 conditions per place. [2024-11-09 07:10:03,451 INFO L140 encePairwiseOnDemand]: 766/772 looper letters, 27 selfloop transitions, 1 changer transitions 24/205 dead transitions. [2024-11-09 07:10:03,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 205 transitions, 588 flow [2024-11-09 07:10:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-11-09 07:10:03,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7741796200345423 [2024-11-09 07:10:03,453 INFO L175 Difference]: Start difference. First operand has 252 places, 210 transitions, 538 flow. Second operand 3 states and 1793 transitions. [2024-11-09 07:10:03,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 205 transitions, 588 flow [2024-11-09 07:10:03,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 205 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:03,457 INFO L231 Difference]: Finished difference. Result has 246 places, 181 transitions, 476 flow [2024-11-09 07:10:03,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=246, PETRI_TRANSITIONS=181} [2024-11-09 07:10:03,457 INFO L277 CegarLoopForPetriNet]: 252 programPoint places, -6 predicate places. [2024-11-09 07:10:03,457 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 181 transitions, 476 flow [2024-11-09 07:10:03,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 587.0) internal successors, (1761), 3 states have internal predecessors, (1761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:03,458 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:03,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-09 07:10:03,458 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:03,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:03,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1633672366, now seen corresponding path program 1 times [2024-11-09 07:10:03,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:03,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970446197] [2024-11-09 07:10:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:03,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:03,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2546 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2546 trivial. 0 not checked. [2024-11-09 07:10:03,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:03,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970446197] [2024-11-09 07:10:03,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970446197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:03,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:03,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:03,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852036884] [2024-11-09 07:10:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:03,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:03,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:03,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:03,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:03,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 772 [2024-11-09 07:10:03,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 181 transitions, 476 flow. Second operand has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:03,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 772 [2024-11-09 07:10:03,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:03,722 INFO L124 PetriNetUnfolderBase]: 0/421 cut-off events. [2024-11-09 07:10:03,722 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-09 07:10:03,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 421 events. 0/421 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 228 event pairs, 0 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 0. Up to 22 conditions per place. [2024-11-09 07:10:03,723 INFO L140 encePairwiseOnDemand]: 768/772 looper letters, 23 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2024-11-09 07:10:03,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 180 transitions, 526 flow [2024-11-09 07:10:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:03,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2615 transitions. [2024-11-09 07:10:03,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8468264248704663 [2024-11-09 07:10:03,726 INFO L175 Difference]: Start difference. First operand has 246 places, 181 transitions, 476 flow. Second operand 4 states and 2615 transitions. [2024-11-09 07:10:03,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 180 transitions, 526 flow [2024-11-09 07:10:03,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 180 transitions, 525 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:03,732 INFO L231 Difference]: Finished difference. Result has 223 places, 180 transitions, 479 flow [2024-11-09 07:10:03,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=772, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=479, PETRI_PLACES=223, PETRI_TRANSITIONS=180} [2024-11-09 07:10:03,732 INFO L277 CegarLoopForPetriNet]: 252 programPoint places, -29 predicate places. [2024-11-09 07:10:03,733 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 180 transitions, 479 flow [2024-11-09 07:10:03,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 653.25) internal successors, (2613), 4 states have internal predecessors, (2613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:03,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:03,733 INFO L204 CegarLoopForPetriNet]: trace histogram [20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:03,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-09 07:10:03,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2024-11-09 07:10:03,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:03,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1018285398, now seen corresponding path program 1 times [2024-11-09 07:10:03,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:03,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918486787] [2024-11-09 07:10:03,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:03,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:03,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:03,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:03,833 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:03,833 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2024-11-09 07:10:03,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2024-11-09 07:10:03,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2024-11-09 07:10:03,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2024-11-09 07:10:03,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2024-11-09 07:10:03,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-09 07:10:03,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-09 07:10:03,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-09 07:10:03,836 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:03,837 WARN L244 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:03,837 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2024-11-09 07:10:03,949 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:03,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 808 places, 809 transitions, 2538 flow [2024-11-09 07:10:04,261 INFO L124 PetriNetUnfolderBase]: 107/1372 cut-off events. [2024-11-09 07:10:04,262 INFO L125 PetriNetUnfolderBase]: For 1520/1520 co-relation queries the response was YES. [2024-11-09 07:10:04,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1685 conditions, 1372 events. 107/1372 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3911 event pairs, 0 based on Foata normal form. 0/1198 useless extension candidates. Maximal degree in co-relation 1644. Up to 42 conditions per place. [2024-11-09 07:10:04,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 808 places, 809 transitions, 2538 flow [2024-11-09 07:10:04,277 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 222 transitions, 907 flow [2024-11-09 07:10:04,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:04,278 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:04,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-09 07:10:04,280 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:04,280 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:04,280 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:04,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:04,281 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:04,281 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:04,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:04,281 INFO L85 PathProgramCache]: Analyzing trace with hash -668098677, now seen corresponding path program 1 times [2024-11-09 07:10:04,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:04,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225536751] [2024-11-09 07:10:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:04,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:04,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:04,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225536751] [2024-11-09 07:10:04,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225536751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:04,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:04,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:04,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828498438] [2024-11-09 07:10:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:04,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:04,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:04,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:04,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 656 out of 809 [2024-11-09 07:10:04,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 222 transitions, 907 flow. Second operand has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:04,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 656 of 809 [2024-11-09 07:10:04,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:04,659 INFO L124 PetriNetUnfolderBase]: 43/1055 cut-off events. [2024-11-09 07:10:04,659 INFO L125 PetriNetUnfolderBase]: For 1751/1751 co-relation queries the response was YES. [2024-11-09 07:10:04,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1504 conditions, 1055 events. 43/1055 cut-off events. For 1751/1751 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2856 event pairs, 21 based on Foata normal form. 22/988 useless extension candidates. Maximal degree in co-relation 1401. Up to 153 conditions per place. [2024-11-09 07:10:04,671 INFO L140 encePairwiseOnDemand]: 803/809 looper letters, 30 selfloop transitions, 2 changer transitions 1/218 dead transitions. [2024-11-09 07:10:04,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 218 transitions, 963 flow [2024-11-09 07:10:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2004 transitions. [2024-11-09 07:10:04,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8257107540173053 [2024-11-09 07:10:04,675 INFO L175 Difference]: Start difference. First operand has 261 places, 222 transitions, 907 flow. Second operand 3 states and 2004 transitions. [2024-11-09 07:10:04,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 218 transitions, 963 flow [2024-11-09 07:10:04,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 218 transitions, 620 flow, removed 171 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:04,684 INFO L231 Difference]: Finished difference. Result has 261 places, 217 transitions, 558 flow [2024-11-09 07:10:04,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=261, PETRI_TRANSITIONS=217} [2024-11-09 07:10:04,685 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, 0 predicate places. [2024-11-09 07:10:04,685 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 217 transitions, 558 flow [2024-11-09 07:10:04,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 657.3333333333334) internal successors, (1972), 3 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:04,686 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:04,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2024-11-09 07:10:04,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:04,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash -439983922, now seen corresponding path program 1 times [2024-11-09 07:10:04,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:04,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110353367] [2024-11-09 07:10:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:04,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:04,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110353367] [2024-11-09 07:10:04,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110353367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:04,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:04,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:04,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777906022] [2024-11-09 07:10:04,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:04,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:04,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:04,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 809 [2024-11-09 07:10:04,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 217 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:04,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:04,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 809 [2024-11-09 07:10:04,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:05,010 INFO L124 PetriNetUnfolderBase]: 22/946 cut-off events. [2024-11-09 07:10:05,011 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-09 07:10:05,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 946 events. 22/946 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2143 event pairs, 0 based on Foata normal form. 21/924 useless extension candidates. Maximal degree in co-relation 1142. Up to 110 conditions per place. [2024-11-09 07:10:05,019 INFO L140 encePairwiseOnDemand]: 803/809 looper letters, 28 selfloop transitions, 1 changer transitions 24/212 dead transitions. [2024-11-09 07:10:05,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 212 transitions, 610 flow [2024-11-09 07:10:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:05,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1878 transitions. [2024-11-09 07:10:05,022 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7737948084054388 [2024-11-09 07:10:05,022 INFO L175 Difference]: Start difference. First operand has 261 places, 217 transitions, 558 flow. Second operand 3 states and 1878 transitions. [2024-11-09 07:10:05,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 212 transitions, 610 flow [2024-11-09 07:10:05,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 212 transitions, 606 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:05,025 INFO L231 Difference]: Finished difference. Result has 255 places, 188 transitions, 496 flow [2024-11-09 07:10:05,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=255, PETRI_TRANSITIONS=188} [2024-11-09 07:10:05,026 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -6 predicate places. [2024-11-09 07:10:05,026 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 188 transitions, 496 flow [2024-11-09 07:10:05,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.0) internal successors, (1845), 3 states have internal predecessors, (1845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:05,027 INFO L204 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:05,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-09 07:10:05,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:05,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1772233043, now seen corresponding path program 1 times [2024-11-09 07:10:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:05,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160708176] [2024-11-09 07:10:05,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:05,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2820 trivial. 0 not checked. [2024-11-09 07:10:05,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:05,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160708176] [2024-11-09 07:10:05,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160708176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:05,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:05,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:05,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013133240] [2024-11-09 07:10:05,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:05,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:05,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:05,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:05,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:05,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 809 [2024-11-09 07:10:05,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 188 transitions, 496 flow. Second operand has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:05,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 809 [2024-11-09 07:10:05,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:05,389 INFO L124 PetriNetUnfolderBase]: 0/441 cut-off events. [2024-11-09 07:10:05,390 INFO L125 PetriNetUnfolderBase]: For 248/248 co-relation queries the response was YES. [2024-11-09 07:10:05,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 441 events. 0/441 cut-off events. For 248/248 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 240 event pairs, 0 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 0. Up to 23 conditions per place. [2024-11-09 07:10:05,391 INFO L140 encePairwiseOnDemand]: 805/809 looper letters, 24 selfloop transitions, 3 changer transitions 0/187 dead transitions. [2024-11-09 07:10:05,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 187 transitions, 548 flow [2024-11-09 07:10:05,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:05,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2740 transitions. [2024-11-09 07:10:05,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8467243510506799 [2024-11-09 07:10:05,395 INFO L175 Difference]: Start difference. First operand has 255 places, 188 transitions, 496 flow. Second operand 4 states and 2740 transitions. [2024-11-09 07:10:05,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 187 transitions, 548 flow [2024-11-09 07:10:05,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 187 transitions, 547 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:05,399 INFO L231 Difference]: Finished difference. Result has 232 places, 187 transitions, 499 flow [2024-11-09 07:10:05,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=809, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=499, PETRI_PLACES=232, PETRI_TRANSITIONS=187} [2024-11-09 07:10:05,400 INFO L277 CegarLoopForPetriNet]: 261 programPoint places, -29 predicate places. [2024-11-09 07:10:05,400 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 187 transitions, 499 flow [2024-11-09 07:10:05,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 684.5) internal successors, (2738), 4 states have internal predecessors, (2738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:05,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:05,401 INFO L204 CegarLoopForPetriNet]: trace histogram [21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:05,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-09 07:10:05,402 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-09 07:10:05,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2145037326, now seen corresponding path program 1 times [2024-11-09 07:10:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:05,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458249582] [2024-11-09 07:10:05,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:05,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:05,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:05,526 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:05,526 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:05,526 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 28 remaining) [2024-11-09 07:10:05,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2024-11-09 07:10:05,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2024-11-09 07:10:05,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2024-11-09 07:10:05,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2024-11-09 07:10:05,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2024-11-09 07:10:05,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 28 remaining) [2024-11-09 07:10:05,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2024-11-09 07:10:05,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2024-11-09 07:10:05,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2024-11-09 07:10:05,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2024-11-09 07:10:05,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2024-11-09 07:10:05,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 28 remaining) [2024-11-09 07:10:05,529 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2024-11-09 07:10:05,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2024-11-09 07:10:05,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2024-11-09 07:10:05,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2024-11-09 07:10:05,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2024-11-09 07:10:05,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2024-11-09 07:10:05,530 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2024-11-09 07:10:05,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2024-11-09 07:10:05,531 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2024-11-09 07:10:05,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-09 07:10:05,531 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:05,531 WARN L244 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:05,531 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2024-11-09 07:10:05,653 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:05,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 845 places, 846 transitions, 2700 flow [2024-11-09 07:10:05,917 INFO L124 PetriNetUnfolderBase]: 112/1436 cut-off events. [2024-11-09 07:10:05,917 INFO L125 PetriNetUnfolderBase]: For 1750/1750 co-relation queries the response was YES. [2024-11-09 07:10:05,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 1436 events. 112/1436 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4195 event pairs, 0 based on Foata normal form. 0/1254 useless extension candidates. Maximal degree in co-relation 1732. Up to 44 conditions per place. [2024-11-09 07:10:05,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 845 places, 846 transitions, 2700 flow [2024-11-09 07:10:05,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 229 transitions, 965 flow [2024-11-09 07:10:05,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:05,927 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:05,927 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-09 07:10:05,929 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:05,929 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:05,929 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:05,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:05,929 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:05,929 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:05,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash 613176267, now seen corresponding path program 1 times [2024-11-09 07:10:05,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:05,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490602548] [2024-11-09 07:10:05,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:05,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490602548] [2024-11-09 07:10:05,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490602548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:05,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290544588] [2024-11-09 07:10:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:05,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:05,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:05,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:06,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 686 out of 846 [2024-11-09 07:10:06,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 229 transitions, 965 flow. Second operand has 3 states, 3 states have (on average 687.3333333333334) internal successors, (2062), 3 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:06,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 686 of 846 [2024-11-09 07:10:06,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:06,232 INFO L124 PetriNetUnfolderBase]: 45/1104 cut-off events. [2024-11-09 07:10:06,232 INFO L125 PetriNetUnfolderBase]: For 2003/2003 co-relation queries the response was YES. [2024-11-09 07:10:06,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1585 conditions, 1104 events. 45/1104 cut-off events. For 2003/2003 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3027 event pairs, 22 based on Foata normal form. 45/1056 useless extension candidates. Maximal degree in co-relation 1480. Up to 160 conditions per place. [2024-11-09 07:10:06,241 INFO L140 encePairwiseOnDemand]: 840/846 looper letters, 31 selfloop transitions, 2 changer transitions 1/225 dead transitions. [2024-11-09 07:10:06,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 225 transitions, 1023 flow [2024-11-09 07:10:06,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:06,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:06,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2095 transitions. [2024-11-09 07:10:06,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8254531126871553 [2024-11-09 07:10:06,244 INFO L175 Difference]: Start difference. First operand has 270 places, 229 transitions, 965 flow. Second operand 3 states and 2095 transitions. [2024-11-09 07:10:06,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 225 transitions, 1023 flow [2024-11-09 07:10:06,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 225 transitions, 642 flow, removed 190 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:06,253 INFO L231 Difference]: Finished difference. Result has 270 places, 224 transitions, 578 flow [2024-11-09 07:10:06,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=270, PETRI_TRANSITIONS=224} [2024-11-09 07:10:06,253 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, 0 predicate places. [2024-11-09 07:10:06,254 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 224 transitions, 578 flow [2024-11-09 07:10:06,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 687.3333333333334) internal successors, (2062), 3 states have internal predecessors, (2062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:06,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:06,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-09 07:10:06,255 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:06,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:06,255 INFO L85 PathProgramCache]: Analyzing trace with hash 648353308, now seen corresponding path program 1 times [2024-11-09 07:10:06,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:06,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273676539] [2024-11-09 07:10:06,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:06,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:06,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:06,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273676539] [2024-11-09 07:10:06,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273676539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:06,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:06,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:06,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166828518] [2024-11-09 07:10:06,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:06,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:06,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:06,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:06,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:06,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 642 out of 846 [2024-11-09 07:10:06,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 224 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:06,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 642 of 846 [2024-11-09 07:10:06,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:06,543 INFO L124 PetriNetUnfolderBase]: 23/990 cut-off events. [2024-11-09 07:10:06,544 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-09 07:10:06,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 990 events. 23/990 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2306 event pairs, 0 based on Foata normal form. 22/967 useless extension candidates. Maximal degree in co-relation 1196. Up to 115 conditions per place. [2024-11-09 07:10:06,554 INFO L140 encePairwiseOnDemand]: 840/846 looper letters, 29 selfloop transitions, 1 changer transitions 24/219 dead transitions. [2024-11-09 07:10:06,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 219 transitions, 632 flow [2024-11-09 07:10:06,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:06,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:06,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1963 transitions. [2024-11-09 07:10:06,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7734436564223798 [2024-11-09 07:10:06,556 INFO L175 Difference]: Start difference. First operand has 270 places, 224 transitions, 578 flow. Second operand 3 states and 1963 transitions. [2024-11-09 07:10:06,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 219 transitions, 632 flow [2024-11-09 07:10:06,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 219 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:06,560 INFO L231 Difference]: Finished difference. Result has 264 places, 195 transitions, 516 flow [2024-11-09 07:10:06,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=264, PETRI_TRANSITIONS=195} [2024-11-09 07:10:06,561 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -6 predicate places. [2024-11-09 07:10:06,561 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 195 transitions, 516 flow [2024-11-09 07:10:06,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:06,562 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:06,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-09 07:10:06,562 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:06,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:06,563 INFO L85 PathProgramCache]: Analyzing trace with hash 741385779, now seen corresponding path program 1 times [2024-11-09 07:10:06,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:06,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316785269] [2024-11-09 07:10:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:06,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3108 trivial. 0 not checked. [2024-11-09 07:10:06,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:06,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316785269] [2024-11-09 07:10:06,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316785269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:06,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:06,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:06,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352945644] [2024-11-09 07:10:06,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:06,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:06,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:06,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:06,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:06,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 709 out of 846 [2024-11-09 07:10:06,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 195 transitions, 516 flow. Second operand has 4 states, 4 states have (on average 715.75) internal successors, (2863), 4 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:06,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 709 of 846 [2024-11-09 07:10:06,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:06,835 INFO L124 PetriNetUnfolderBase]: 0/461 cut-off events. [2024-11-09 07:10:06,835 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-09 07:10:06,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 461 events. 0/461 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 252 event pairs, 0 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 0. Up to 24 conditions per place. [2024-11-09 07:10:06,836 INFO L140 encePairwiseOnDemand]: 842/846 looper letters, 25 selfloop transitions, 3 changer transitions 0/194 dead transitions. [2024-11-09 07:10:06,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 194 transitions, 570 flow [2024-11-09 07:10:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2865 transitions. [2024-11-09 07:10:06,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8466312056737588 [2024-11-09 07:10:06,839 INFO L175 Difference]: Start difference. First operand has 264 places, 195 transitions, 516 flow. Second operand 4 states and 2865 transitions. [2024-11-09 07:10:06,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 194 transitions, 570 flow [2024-11-09 07:10:06,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 194 transitions, 569 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:06,843 INFO L231 Difference]: Finished difference. Result has 241 places, 194 transitions, 519 flow [2024-11-09 07:10:06,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=846, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=519, PETRI_PLACES=241, PETRI_TRANSITIONS=194} [2024-11-09 07:10:06,843 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, -29 predicate places. [2024-11-09 07:10:06,843 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 194 transitions, 519 flow [2024-11-09 07:10:06,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 715.75) internal successors, (2863), 4 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:06,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:06,845 INFO L204 CegarLoopForPetriNet]: trace histogram [22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:06,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-09 07:10:06,845 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-09 07:10:06,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:06,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1315259578, now seen corresponding path program 1 times [2024-11-09 07:10:06,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:06,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122113709] [2024-11-09 07:10:06,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:06,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:06,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:06,960 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:06,960 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 29 remaining) [2024-11-09 07:10:06,961 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-09 07:10:06,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-09 07:10:06,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-09 07:10:06,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-09 07:10:06,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-09 07:10:06,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-09 07:10:06,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-09 07:10:06,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-09 07:10:06,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-09 07:10:06,964 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:06,965 WARN L244 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:06,965 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2024-11-09 07:10:07,066 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:07,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 882 places, 883 transitions, 2866 flow [2024-11-09 07:10:07,362 INFO L124 PetriNetUnfolderBase]: 117/1500 cut-off events. [2024-11-09 07:10:07,362 INFO L125 PetriNetUnfolderBase]: For 2002/2002 co-relation queries the response was YES. [2024-11-09 07:10:07,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1866 conditions, 1500 events. 117/1500 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4137 event pairs, 0 based on Foata normal form. 0/1310 useless extension candidates. Maximal degree in co-relation 1821. Up to 46 conditions per place. [2024-11-09 07:10:07,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 882 places, 883 transitions, 2866 flow [2024-11-09 07:10:07,370 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 236 transitions, 1025 flow [2024-11-09 07:10:07,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:07,371 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:07,371 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-09 07:10:07,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:07,372 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:07,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:07,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:07,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:07,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:07,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash -684367765, now seen corresponding path program 1 times [2024-11-09 07:10:07,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:07,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66035113] [2024-11-09 07:10:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:07,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:07,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:07,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66035113] [2024-11-09 07:10:07,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66035113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:07,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:07,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375860363] [2024-11-09 07:10:07,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:07,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:07,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:07,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:07,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:07,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 716 out of 883 [2024-11-09 07:10:07,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 236 transitions, 1025 flow. Second operand has 3 states, 3 states have (on average 717.3333333333334) internal successors, (2152), 3 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:07,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 716 of 883 [2024-11-09 07:10:07,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:07,708 INFO L124 PetriNetUnfolderBase]: 47/1153 cut-off events. [2024-11-09 07:10:07,708 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2024-11-09 07:10:07,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1667 conditions, 1153 events. 47/1153 cut-off events. For 2278/2278 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3215 event pairs, 23 based on Foata normal form. 47/1103 useless extension candidates. Maximal degree in co-relation 1560. Up to 167 conditions per place. [2024-11-09 07:10:07,718 INFO L140 encePairwiseOnDemand]: 877/883 looper letters, 32 selfloop transitions, 2 changer transitions 1/232 dead transitions. [2024-11-09 07:10:07,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 232 transitions, 1085 flow [2024-11-09 07:10:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2186 transitions. [2024-11-09 07:10:07,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8252170630426576 [2024-11-09 07:10:07,721 INFO L175 Difference]: Start difference. First operand has 279 places, 236 transitions, 1025 flow. Second operand 3 states and 2186 transitions. [2024-11-09 07:10:07,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 232 transitions, 1085 flow [2024-11-09 07:10:07,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 232 transitions, 664 flow, removed 210 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:07,729 INFO L231 Difference]: Finished difference. Result has 279 places, 231 transitions, 598 flow [2024-11-09 07:10:07,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=279, PETRI_TRANSITIONS=231} [2024-11-09 07:10:07,729 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, 0 predicate places. [2024-11-09 07:10:07,729 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 231 transitions, 598 flow [2024-11-09 07:10:07,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 717.3333333333334) internal successors, (2152), 3 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:07,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:07,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-09 07:10:07,730 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:07,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:07,731 INFO L85 PathProgramCache]: Analyzing trace with hash 220636815, now seen corresponding path program 1 times [2024-11-09 07:10:07,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:07,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517809620] [2024-11-09 07:10:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:07,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:07,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:07,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517809620] [2024-11-09 07:10:07,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517809620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:07,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:07,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:07,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899371179] [2024-11-09 07:10:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:07,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:07,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:07,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:07,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:07,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 670 out of 883 [2024-11-09 07:10:07,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 231 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:07,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:07,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 670 of 883 [2024-11-09 07:10:07,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:08,013 INFO L124 PetriNetUnfolderBase]: 24/1034 cut-off events. [2024-11-09 07:10:08,013 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-11-09 07:10:08,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 1034 events. 24/1034 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2413 event pairs, 0 based on Foata normal form. 23/1010 useless extension candidates. Maximal degree in co-relation 1250. Up to 120 conditions per place. [2024-11-09 07:10:08,020 INFO L140 encePairwiseOnDemand]: 877/883 looper letters, 30 selfloop transitions, 1 changer transitions 24/226 dead transitions. [2024-11-09 07:10:08,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 226 transitions, 654 flow [2024-11-09 07:10:08,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:08,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2048 transitions. [2024-11-09 07:10:08,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.773121932804832 [2024-11-09 07:10:08,023 INFO L175 Difference]: Start difference. First operand has 279 places, 231 transitions, 598 flow. Second operand 3 states and 2048 transitions. [2024-11-09 07:10:08,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 226 transitions, 654 flow [2024-11-09 07:10:08,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 226 transitions, 650 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:08,026 INFO L231 Difference]: Finished difference. Result has 273 places, 202 transitions, 536 flow [2024-11-09 07:10:08,026 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=273, PETRI_TRANSITIONS=202} [2024-11-09 07:10:08,026 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -6 predicate places. [2024-11-09 07:10:08,026 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 202 transitions, 536 flow [2024-11-09 07:10:08,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:08,027 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:08,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-09 07:10:08,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:08,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1711968992, now seen corresponding path program 1 times [2024-11-09 07:10:08,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:08,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993442394] [2024-11-09 07:10:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:08,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3410 trivial. 0 not checked. [2024-11-09 07:10:08,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:08,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993442394] [2024-11-09 07:10:08,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993442394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:08,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:08,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:08,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876655672] [2024-11-09 07:10:08,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:08,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:08,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:08,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:08,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:08,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 740 out of 883 [2024-11-09 07:10:08,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 202 transitions, 536 flow. Second operand has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:08,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 740 of 883 [2024-11-09 07:10:08,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:08,299 INFO L124 PetriNetUnfolderBase]: 0/481 cut-off events. [2024-11-09 07:10:08,300 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-09 07:10:08,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 601 conditions, 481 events. 0/481 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 263 event pairs, 0 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 0. Up to 25 conditions per place. [2024-11-09 07:10:08,301 INFO L140 encePairwiseOnDemand]: 879/883 looper letters, 26 selfloop transitions, 3 changer transitions 0/201 dead transitions. [2024-11-09 07:10:08,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 201 transitions, 592 flow [2024-11-09 07:10:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:08,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2990 transitions. [2024-11-09 07:10:08,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8465458663646659 [2024-11-09 07:10:08,304 INFO L175 Difference]: Start difference. First operand has 273 places, 202 transitions, 536 flow. Second operand 4 states and 2990 transitions. [2024-11-09 07:10:08,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 201 transitions, 592 flow [2024-11-09 07:10:08,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 201 transitions, 591 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:08,307 INFO L231 Difference]: Finished difference. Result has 250 places, 201 transitions, 539 flow [2024-11-09 07:10:08,307 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=883, PETRI_DIFFERENCE_MINUEND_FLOW=533, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=539, PETRI_PLACES=250, PETRI_TRANSITIONS=201} [2024-11-09 07:10:08,308 INFO L277 CegarLoopForPetriNet]: 279 programPoint places, -29 predicate places. [2024-11-09 07:10:08,308 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 201 transitions, 539 flow [2024-11-09 07:10:08,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 747.0) internal successors, (2988), 4 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,309 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:08,309 INFO L204 CegarLoopForPetriNet]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:08,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-09 07:10:08,309 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 07:10:08,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 598389254, now seen corresponding path program 1 times [2024-11-09 07:10:08,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:08,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368778558] [2024-11-09 07:10:08,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:08,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:08,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:08,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:08,421 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:08,424 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2024-11-09 07:10:08,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2024-11-09 07:10:08,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2024-11-09 07:10:08,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2024-11-09 07:10:08,424 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2024-11-09 07:10:08,425 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2024-11-09 07:10:08,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2024-11-09 07:10:08,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-09 07:10:08,427 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:08,427 WARN L244 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:08,427 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2024-11-09 07:10:08,532 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:08,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 919 places, 920 transitions, 3036 flow [2024-11-09 07:10:08,776 INFO L124 PetriNetUnfolderBase]: 122/1564 cut-off events. [2024-11-09 07:10:08,776 INFO L125 PetriNetUnfolderBase]: For 2277/2277 co-relation queries the response was YES. [2024-11-09 07:10:08,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1958 conditions, 1564 events. 122/1564 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4254 event pairs, 0 based on Foata normal form. 0/1366 useless extension candidates. Maximal degree in co-relation 1911. Up to 48 conditions per place. [2024-11-09 07:10:08,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 919 places, 920 transitions, 3036 flow [2024-11-09 07:10:08,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 288 places, 243 transitions, 1087 flow [2024-11-09 07:10:08,793 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:08,793 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:08,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-09 07:10:08,794 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:08,794 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:08,794 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:08,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:08,795 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:08,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:08,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:08,795 INFO L85 PathProgramCache]: Analyzing trace with hash -265763477, now seen corresponding path program 1 times [2024-11-09 07:10:08,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:08,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469945328] [2024-11-09 07:10:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:08,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:08,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:08,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469945328] [2024-11-09 07:10:08,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469945328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:08,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:08,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:08,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534387147] [2024-11-09 07:10:08,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:08,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:08,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:08,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:08,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 746 out of 920 [2024-11-09 07:10:08,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 243 transitions, 1087 flow. Second operand has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:08,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:08,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 746 of 920 [2024-11-09 07:10:08,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:09,080 INFO L124 PetriNetUnfolderBase]: 49/1202 cut-off events. [2024-11-09 07:10:09,081 INFO L125 PetriNetUnfolderBase]: For 2577/2577 co-relation queries the response was YES. [2024-11-09 07:10:09,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1202 events. 49/1202 cut-off events. For 2577/2577 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3334 event pairs, 24 based on Foata normal form. 49/1150 useless extension candidates. Maximal degree in co-relation 1641. Up to 174 conditions per place. [2024-11-09 07:10:09,090 INFO L140 encePairwiseOnDemand]: 914/920 looper letters, 33 selfloop transitions, 2 changer transitions 1/239 dead transitions. [2024-11-09 07:10:09,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 239 transitions, 1149 flow [2024-11-09 07:10:09,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:09,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:09,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2277 transitions. [2024-11-09 07:10:09,092 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.825 [2024-11-09 07:10:09,092 INFO L175 Difference]: Start difference. First operand has 288 places, 243 transitions, 1087 flow. Second operand 3 states and 2277 transitions. [2024-11-09 07:10:09,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 239 transitions, 1149 flow [2024-11-09 07:10:09,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 239 transitions, 686 flow, removed 231 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:09,101 INFO L231 Difference]: Finished difference. Result has 288 places, 238 transitions, 618 flow [2024-11-09 07:10:09,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=288, PETRI_TRANSITIONS=238} [2024-11-09 07:10:09,101 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, 0 predicate places. [2024-11-09 07:10:09,101 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 238 transitions, 618 flow [2024-11-09 07:10:09,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 747.3333333333334) internal successors, (2242), 3 states have internal predecessors, (2242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:09,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:09,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-09 07:10:09,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:09,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1723133401, now seen corresponding path program 1 times [2024-11-09 07:10:09,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:09,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364293241] [2024-11-09 07:10:09,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:09,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:09,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:09,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:09,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364293241] [2024-11-09 07:10:09,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364293241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:09,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:09,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:09,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780998311] [2024-11-09 07:10:09,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:09,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:09,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:09,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 698 out of 920 [2024-11-09 07:10:09,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 238 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:09,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 698 of 920 [2024-11-09 07:10:09,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:09,412 INFO L124 PetriNetUnfolderBase]: 25/1078 cut-off events. [2024-11-09 07:10:09,412 INFO L125 PetriNetUnfolderBase]: For 321/321 co-relation queries the response was YES. [2024-11-09 07:10:09,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1348 conditions, 1078 events. 25/1078 cut-off events. For 321/321 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2522 event pairs, 0 based on Foata normal form. 24/1053 useless extension candidates. Maximal degree in co-relation 1304. Up to 125 conditions per place. [2024-11-09 07:10:09,419 INFO L140 encePairwiseOnDemand]: 914/920 looper letters, 31 selfloop transitions, 1 changer transitions 24/233 dead transitions. [2024-11-09 07:10:09,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 233 transitions, 676 flow [2024-11-09 07:10:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2133 transitions. [2024-11-09 07:10:09,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7728260869565218 [2024-11-09 07:10:09,421 INFO L175 Difference]: Start difference. First operand has 288 places, 238 transitions, 618 flow. Second operand 3 states and 2133 transitions. [2024-11-09 07:10:09,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 233 transitions, 676 flow [2024-11-09 07:10:09,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 233 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:09,424 INFO L231 Difference]: Finished difference. Result has 282 places, 209 transitions, 556 flow [2024-11-09 07:10:09,424 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=556, PETRI_PLACES=282, PETRI_TRANSITIONS=209} [2024-11-09 07:10:09,424 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, -6 predicate places. [2024-11-09 07:10:09,425 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 209 transitions, 556 flow [2024-11-09 07:10:09,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:09,425 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:09,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-09 07:10:09,425 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:09,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash -2106399660, now seen corresponding path program 1 times [2024-11-09 07:10:09,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:09,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988535295] [2024-11-09 07:10:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:09,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:09,518 INFO L134 CoverageAnalysis]: Checked inductivity of 3726 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3726 trivial. 0 not checked. [2024-11-09 07:10:09,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:09,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988535295] [2024-11-09 07:10:09,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988535295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:09,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:09,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:09,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905732398] [2024-11-09 07:10:09,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:09,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:09,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:09,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:09,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:09,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 771 out of 920 [2024-11-09 07:10:09,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 209 transitions, 556 flow. Second operand has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:09,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 771 of 920 [2024-11-09 07:10:09,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:09,706 INFO L124 PetriNetUnfolderBase]: 0/501 cut-off events. [2024-11-09 07:10:09,706 INFO L125 PetriNetUnfolderBase]: For 320/320 co-relation queries the response was YES. [2024-11-09 07:10:09,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 501 events. 0/501 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 276 event pairs, 0 based on Foata normal form. 0/501 useless extension candidates. Maximal degree in co-relation 0. Up to 26 conditions per place. [2024-11-09 07:10:09,707 INFO L140 encePairwiseOnDemand]: 916/920 looper letters, 27 selfloop transitions, 3 changer transitions 0/208 dead transitions. [2024-11-09 07:10:09,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 208 transitions, 614 flow [2024-11-09 07:10:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:09,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3115 transitions. [2024-11-09 07:10:09,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8464673913043478 [2024-11-09 07:10:09,710 INFO L175 Difference]: Start difference. First operand has 282 places, 209 transitions, 556 flow. Second operand 4 states and 3115 transitions. [2024-11-09 07:10:09,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 208 transitions, 614 flow [2024-11-09 07:10:09,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 208 transitions, 613 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:09,714 INFO L231 Difference]: Finished difference. Result has 259 places, 208 transitions, 559 flow [2024-11-09 07:10:09,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=920, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=559, PETRI_PLACES=259, PETRI_TRANSITIONS=208} [2024-11-09 07:10:09,715 INFO L277 CegarLoopForPetriNet]: 288 programPoint places, -29 predicate places. [2024-11-09 07:10:09,715 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 208 transitions, 559 flow [2024-11-09 07:10:09,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 778.25) internal successors, (3113), 4 states have internal predecessors, (3113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:09,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:09,716 INFO L204 CegarLoopForPetriNet]: trace histogram [24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:09,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2024-11-09 07:10:09,716 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-09 07:10:09,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:09,716 INFO L85 PathProgramCache]: Analyzing trace with hash 480657810, now seen corresponding path program 1 times [2024-11-09 07:10:09,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:09,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432772151] [2024-11-09 07:10:09,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:09,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:09,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:09,831 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:09,831 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-09 07:10:09,832 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-09 07:10:09,833 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-09 07:10:09,834 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-09 07:10:09,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-09 07:10:09,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-09 07:10:09,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-09 07:10:09,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-09 07:10:09,835 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-09 07:10:09,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2024-11-09 07:10:09,835 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:09,835 WARN L244 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:09,835 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2024-11-09 07:10:09,946 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:09,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 956 places, 957 transitions, 3210 flow [2024-11-09 07:10:10,166 INFO L124 PetriNetUnfolderBase]: 127/1628 cut-off events. [2024-11-09 07:10:10,166 INFO L125 PetriNetUnfolderBase]: For 2576/2576 co-relation queries the response was YES. [2024-11-09 07:10:10,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2051 conditions, 1628 events. 127/1628 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4558 event pairs, 0 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 2002. Up to 50 conditions per place. [2024-11-09 07:10:10,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 956 places, 957 transitions, 3210 flow [2024-11-09 07:10:10,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 297 places, 250 transitions, 1151 flow [2024-11-09 07:10:10,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:10,184 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:10,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-09 07:10:10,184 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:10,185 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:10,185 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:10,185 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:10,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:10,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:10,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1868989131, now seen corresponding path program 1 times [2024-11-09 07:10:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:10,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202909814] [2024-11-09 07:10:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:10,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:10,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:10,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202909814] [2024-11-09 07:10:10,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202909814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:10,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:10,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:10,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943768261] [2024-11-09 07:10:10,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:10,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:10,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:10,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:10,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 776 out of 957 [2024-11-09 07:10:10,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 250 transitions, 1151 flow. Second operand has 3 states, 3 states have (on average 777.3333333333334) internal successors, (2332), 3 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:10,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:10,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 776 of 957 [2024-11-09 07:10:10,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:10,463 INFO L124 PetriNetUnfolderBase]: 51/1251 cut-off events. [2024-11-09 07:10:10,463 INFO L125 PetriNetUnfolderBase]: For 2901/2901 co-relation queries the response was YES. [2024-11-09 07:10:10,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1834 conditions, 1251 events. 51/1251 cut-off events. For 2901/2901 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3429 event pairs, 25 based on Foata normal form. 26/1172 useless extension candidates. Maximal degree in co-relation 1723. Up to 181 conditions per place. [2024-11-09 07:10:10,473 INFO L140 encePairwiseOnDemand]: 951/957 looper letters, 34 selfloop transitions, 2 changer transitions 1/246 dead transitions. [2024-11-09 07:10:10,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 246 transitions, 1215 flow [2024-11-09 07:10:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:10,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2368 transitions. [2024-11-09 07:10:10,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8247997213514455 [2024-11-09 07:10:10,475 INFO L175 Difference]: Start difference. First operand has 297 places, 250 transitions, 1151 flow. Second operand 3 states and 2368 transitions. [2024-11-09 07:10:10,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 246 transitions, 1215 flow [2024-11-09 07:10:10,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 246 transitions, 708 flow, removed 253 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:10,484 INFO L231 Difference]: Finished difference. Result has 297 places, 245 transitions, 638 flow [2024-11-09 07:10:10,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=297, PETRI_TRANSITIONS=245} [2024-11-09 07:10:10,484 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, 0 predicate places. [2024-11-09 07:10:10,484 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 245 transitions, 638 flow [2024-11-09 07:10:10,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 777.3333333333334) internal successors, (2332), 3 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:10,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:10,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:10,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2024-11-09 07:10:10,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:10,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:10,486 INFO L85 PathProgramCache]: Analyzing trace with hash -887990044, now seen corresponding path program 1 times [2024-11-09 07:10:10,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:10,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158303283] [2024-11-09 07:10:10,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:10,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:10,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:10,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158303283] [2024-11-09 07:10:10,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158303283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:10,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:10,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:10,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278627021] [2024-11-09 07:10:10,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:10,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:10,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:10,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:10,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 726 out of 957 [2024-11-09 07:10:10,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 245 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 727.0) internal successors, (2181), 3 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:10,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:10,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 726 of 957 [2024-11-09 07:10:10,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:10,890 INFO L124 PetriNetUnfolderBase]: 26/1122 cut-off events. [2024-11-09 07:10:10,891 INFO L125 PetriNetUnfolderBase]: For 347/347 co-relation queries the response was YES. [2024-11-09 07:10:10,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 1122 events. 26/1122 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2579 event pairs, 0 based on Foata normal form. 25/1096 useless extension candidates. Maximal degree in co-relation 1358. Up to 130 conditions per place. [2024-11-09 07:10:11,002 INFO L140 encePairwiseOnDemand]: 951/957 looper letters, 32 selfloop transitions, 1 changer transitions 24/240 dead transitions. [2024-11-09 07:10:11,003 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 240 transitions, 698 flow [2024-11-09 07:10:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2218 transitions. [2024-11-09 07:10:11,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7725531173807035 [2024-11-09 07:10:11,008 INFO L175 Difference]: Start difference. First operand has 297 places, 245 transitions, 638 flow. Second operand 3 states and 2218 transitions. [2024-11-09 07:10:11,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 240 transitions, 698 flow [2024-11-09 07:10:11,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 240 transitions, 694 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:11,013 INFO L231 Difference]: Finished difference. Result has 291 places, 216 transitions, 576 flow [2024-11-09 07:10:11,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=291, PETRI_TRANSITIONS=216} [2024-11-09 07:10:11,013 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, -6 predicate places. [2024-11-09 07:10:11,013 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 216 transitions, 576 flow [2024-11-09 07:10:11,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 727.0) internal successors, (2181), 3 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:11,016 INFO L204 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:11,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2024-11-09 07:10:11,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:11,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:11,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1065240017, now seen corresponding path program 1 times [2024-11-09 07:10:11,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:11,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47172968] [2024-11-09 07:10:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:11,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4056 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4056 trivial. 0 not checked. [2024-11-09 07:10:11,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:11,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47172968] [2024-11-09 07:10:11,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47172968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:11,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:11,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:11,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966601723] [2024-11-09 07:10:11,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:11,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:11,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:11,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:11,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 802 out of 957 [2024-11-09 07:10:11,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 216 transitions, 576 flow. Second operand has 4 states, 4 states have (on average 809.5) internal successors, (3238), 4 states have internal predecessors, (3238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:11,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 802 of 957 [2024-11-09 07:10:11,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:11,387 INFO L124 PetriNetUnfolderBase]: 0/521 cut-off events. [2024-11-09 07:10:11,388 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2024-11-09 07:10:11,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 521 events. 0/521 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 288 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 0. Up to 27 conditions per place. [2024-11-09 07:10:11,389 INFO L140 encePairwiseOnDemand]: 953/957 looper letters, 28 selfloop transitions, 3 changer transitions 0/215 dead transitions. [2024-11-09 07:10:11,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 215 transitions, 636 flow [2024-11-09 07:10:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:11,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:11,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3240 transitions. [2024-11-09 07:10:11,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8463949843260188 [2024-11-09 07:10:11,392 INFO L175 Difference]: Start difference. First operand has 291 places, 216 transitions, 576 flow. Second operand 4 states and 3240 transitions. [2024-11-09 07:10:11,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 215 transitions, 636 flow [2024-11-09 07:10:11,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 215 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:11,396 INFO L231 Difference]: Finished difference. Result has 268 places, 215 transitions, 579 flow [2024-11-09 07:10:11,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=957, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=579, PETRI_PLACES=268, PETRI_TRANSITIONS=215} [2024-11-09 07:10:11,397 INFO L277 CegarLoopForPetriNet]: 297 programPoint places, -29 predicate places. [2024-11-09 07:10:11,397 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 215 transitions, 579 flow [2024-11-09 07:10:11,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 809.5) internal successors, (3238), 4 states have internal predecessors, (3238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:11,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:11,398 INFO L204 CegarLoopForPetriNet]: trace histogram [25, 25, 25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:11,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2024-11-09 07:10:11,398 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-09 07:10:11,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash -403229878, now seen corresponding path program 1 times [2024-11-09 07:10:11,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:11,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542779222] [2024-11-09 07:10:11,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:11,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:11,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:11,556 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:11,556 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:11,557 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 32 remaining) [2024-11-09 07:10:11,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2024-11-09 07:10:11,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2024-11-09 07:10:11,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2024-11-09 07:10:11,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2024-11-09 07:10:11,557 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2024-11-09 07:10:11,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 32 remaining) [2024-11-09 07:10:11,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2024-11-09 07:10:11,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2024-11-09 07:10:11,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2024-11-09 07:10:11,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2024-11-09 07:10:11,558 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2024-11-09 07:10:11,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2024-11-09 07:10:11,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2024-11-09 07:10:11,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2024-11-09 07:10:11,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2024-11-09 07:10:11,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2024-11-09 07:10:11,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2024-11-09 07:10:11,560 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2024-11-09 07:10:11,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2024-11-09 07:10:11,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2024-11-09 07:10:11,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2024-11-09 07:10:11,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2024-11-09 07:10:11,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2024-11-09 07:10:11,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2024-11-09 07:10:11,562 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:11,562 WARN L244 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:11,562 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2024-11-09 07:10:11,694 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:11,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 994 transitions, 3388 flow [2024-11-09 07:10:12,110 INFO L124 PetriNetUnfolderBase]: 132/1692 cut-off events. [2024-11-09 07:10:12,111 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-09 07:10:12,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2145 conditions, 1692 events. 132/1692 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4743 event pairs, 0 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 2094. Up to 52 conditions per place. [2024-11-09 07:10:12,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 993 places, 994 transitions, 3388 flow [2024-11-09 07:10:12,139 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 257 transitions, 1217 flow [2024-11-09 07:10:12,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:12,140 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:12,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-09 07:10:12,142 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:12,142 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:12,142 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:12,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:12,143 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:12,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:12,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:12,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1424922763, now seen corresponding path program 1 times [2024-11-09 07:10:12,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:12,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622910546] [2024-11-09 07:10:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:12,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622910546] [2024-11-09 07:10:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622910546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:12,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:12,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:12,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406078898] [2024-11-09 07:10:12,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:12,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:12,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:12,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:12,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:12,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 806 out of 994 [2024-11-09 07:10:12,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 257 transitions, 1217 flow. Second operand has 3 states, 3 states have (on average 807.3333333333334) internal successors, (2422), 3 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:12,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:12,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 806 of 994 [2024-11-09 07:10:12,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:12,599 INFO L124 PetriNetUnfolderBase]: 53/1300 cut-off events. [2024-11-09 07:10:12,600 INFO L125 PetriNetUnfolderBase]: For 3251/3251 co-relation queries the response was YES. [2024-11-09 07:10:12,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1300 events. 53/1300 cut-off events. For 3251/3251 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3569 event pairs, 26 based on Foata normal form. 27/1218 useless extension candidates. Maximal degree in co-relation 1806. Up to 188 conditions per place. [2024-11-09 07:10:12,611 INFO L140 encePairwiseOnDemand]: 988/994 looper letters, 35 selfloop transitions, 2 changer transitions 1/253 dead transitions. [2024-11-09 07:10:12,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 253 transitions, 1283 flow [2024-11-09 07:10:12,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:12,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:12,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2459 transitions. [2024-11-09 07:10:12,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8246143527833669 [2024-11-09 07:10:12,614 INFO L175 Difference]: Start difference. First operand has 306 places, 257 transitions, 1217 flow. Second operand 3 states and 2459 transitions. [2024-11-09 07:10:12,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 253 transitions, 1283 flow [2024-11-09 07:10:12,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 253 transitions, 730 flow, removed 276 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:12,622 INFO L231 Difference]: Finished difference. Result has 306 places, 252 transitions, 658 flow [2024-11-09 07:10:12,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=306, PETRI_TRANSITIONS=252} [2024-11-09 07:10:12,622 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, 0 predicate places. [2024-11-09 07:10:12,623 INFO L471 AbstractCegarLoop]: Abstraction has has 306 places, 252 transitions, 658 flow [2024-11-09 07:10:12,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 807.3333333333334) internal successors, (2422), 3 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:12,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:12,623 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:12,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2024-11-09 07:10:12,623 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:12,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:12,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1568900410, now seen corresponding path program 1 times [2024-11-09 07:10:12,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:12,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376588340] [2024-11-09 07:10:12,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:12,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:12,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:12,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376588340] [2024-11-09 07:10:12,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376588340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:12,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:12,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:12,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943539509] [2024-11-09 07:10:12,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:12,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:12,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:12,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:12,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:12,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 994 [2024-11-09 07:10:12,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 252 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:12,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:12,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 994 [2024-11-09 07:10:12,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:12,981 INFO L124 PetriNetUnfolderBase]: 27/1166 cut-off events. [2024-11-09 07:10:12,982 INFO L125 PetriNetUnfolderBase]: For 374/374 co-relation queries the response was YES. [2024-11-09 07:10:12,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1166 events. 27/1166 cut-off events. For 374/374 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2681 event pairs, 0 based on Foata normal form. 26/1139 useless extension candidates. Maximal degree in co-relation 1412. Up to 135 conditions per place. [2024-11-09 07:10:12,990 INFO L140 encePairwiseOnDemand]: 988/994 looper letters, 33 selfloop transitions, 1 changer transitions 24/247 dead transitions. [2024-11-09 07:10:12,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 247 transitions, 720 flow [2024-11-09 07:10:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:12,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2303 transitions. [2024-11-09 07:10:12,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7723004694835681 [2024-11-09 07:10:12,992 INFO L175 Difference]: Start difference. First operand has 306 places, 252 transitions, 658 flow. Second operand 3 states and 2303 transitions. [2024-11-09 07:10:12,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 247 transitions, 720 flow [2024-11-09 07:10:12,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 247 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:12,994 INFO L231 Difference]: Finished difference. Result has 300 places, 223 transitions, 596 flow [2024-11-09 07:10:12,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=300, PETRI_TRANSITIONS=223} [2024-11-09 07:10:12,995 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -6 predicate places. [2024-11-09 07:10:12,995 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 223 transitions, 596 flow [2024-11-09 07:10:12,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 755.0) internal successors, (2265), 3 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:12,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:12,995 INFO L204 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:12,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2024-11-09 07:10:12,996 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:12,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:12,996 INFO L85 PathProgramCache]: Analyzing trace with hash 983307281, now seen corresponding path program 1 times [2024-11-09 07:10:12,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:12,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115805810] [2024-11-09 07:10:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:12,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:13,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4400 trivial. 0 not checked. [2024-11-09 07:10:13,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:13,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115805810] [2024-11-09 07:10:13,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115805810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:13,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:13,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:13,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716638083] [2024-11-09 07:10:13,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:13,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:13,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:13,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:13,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:13,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 833 out of 994 [2024-11-09 07:10:13,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 223 transitions, 596 flow. Second operand has 4 states, 4 states have (on average 840.75) internal successors, (3363), 4 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:13,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 833 of 994 [2024-11-09 07:10:13,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:13,291 INFO L124 PetriNetUnfolderBase]: 0/541 cut-off events. [2024-11-09 07:10:13,291 INFO L125 PetriNetUnfolderBase]: For 373/373 co-relation queries the response was YES. [2024-11-09 07:10:13,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 541 events. 0/541 cut-off events. For 373/373 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 300 event pairs, 0 based on Foata normal form. 0/541 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2024-11-09 07:10:13,292 INFO L140 encePairwiseOnDemand]: 990/994 looper letters, 29 selfloop transitions, 3 changer transitions 0/222 dead transitions. [2024-11-09 07:10:13,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 222 transitions, 658 flow [2024-11-09 07:10:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3365 transitions. [2024-11-09 07:10:13,294 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.846327967806841 [2024-11-09 07:10:13,294 INFO L175 Difference]: Start difference. First operand has 300 places, 223 transitions, 596 flow. Second operand 4 states and 3365 transitions. [2024-11-09 07:10:13,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 222 transitions, 658 flow [2024-11-09 07:10:13,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 222 transitions, 657 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:13,297 INFO L231 Difference]: Finished difference. Result has 277 places, 222 transitions, 599 flow [2024-11-09 07:10:13,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=994, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=599, PETRI_PLACES=277, PETRI_TRANSITIONS=222} [2024-11-09 07:10:13,298 INFO L277 CegarLoopForPetriNet]: 306 programPoint places, -29 predicate places. [2024-11-09 07:10:13,298 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 222 transitions, 599 flow [2024-11-09 07:10:13,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 840.75) internal successors, (3363), 4 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:13,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:13,299 INFO L204 CegarLoopForPetriNet]: trace histogram [26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:13,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2024-11-09 07:10:13,299 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-11-09 07:10:13,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:13,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1633947790, now seen corresponding path program 1 times [2024-11-09 07:10:13,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:13,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385956039] [2024-11-09 07:10:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:13,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:13,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:13,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:13,437 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:13,437 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-09 07:10:13,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-09 07:10:13,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-09 07:10:13,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-09 07:10:13,440 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-09 07:10:13,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2024-11-09 07:10:13,440 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:13,441 WARN L244 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:13,441 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2024-11-09 07:10:13,549 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:13,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1030 places, 1031 transitions, 3570 flow [2024-11-09 07:10:13,981 INFO L124 PetriNetUnfolderBase]: 137/1756 cut-off events. [2024-11-09 07:10:13,981 INFO L125 PetriNetUnfolderBase]: For 3250/3250 co-relation queries the response was YES. [2024-11-09 07:10:13,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2240 conditions, 1756 events. 137/1756 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4778 event pairs, 0 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2187. Up to 54 conditions per place. [2024-11-09 07:10:13,996 INFO L82 GeneralOperation]: Start removeDead. Operand has 1030 places, 1031 transitions, 3570 flow [2024-11-09 07:10:13,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 264 transitions, 1285 flow [2024-11-09 07:10:13,999 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:13,999 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:13,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-09 07:10:14,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:14,000 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:14,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:14,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:14,000 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:14,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:14,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:14,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1597962581, now seen corresponding path program 1 times [2024-11-09 07:10:14,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:14,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088422605] [2024-11-09 07:10:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:14,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:14,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088422605] [2024-11-09 07:10:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088422605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:14,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:14,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:14,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923589973] [2024-11-09 07:10:14,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:14,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:14,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:14,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:14,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:14,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 836 out of 1031 [2024-11-09 07:10:14,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 264 transitions, 1285 flow. Second operand has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:14,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 836 of 1031 [2024-11-09 07:10:14,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:14,345 INFO L124 PetriNetUnfolderBase]: 55/1349 cut-off events. [2024-11-09 07:10:14,346 INFO L125 PetriNetUnfolderBase]: For 3628/3628 co-relation queries the response was YES. [2024-11-09 07:10:14,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2005 conditions, 1349 events. 55/1349 cut-off events. For 3628/3628 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3664 event pairs, 27 based on Foata normal form. 55/1291 useless extension candidates. Maximal degree in co-relation 1890. Up to 195 conditions per place. [2024-11-09 07:10:14,359 INFO L140 encePairwiseOnDemand]: 1025/1031 looper letters, 36 selfloop transitions, 2 changer transitions 1/260 dead transitions. [2024-11-09 07:10:14,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 260 transitions, 1353 flow [2024-11-09 07:10:14,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:14,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2550 transitions. [2024-11-09 07:10:14,360 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8244422890397672 [2024-11-09 07:10:14,360 INFO L175 Difference]: Start difference. First operand has 315 places, 264 transitions, 1285 flow. Second operand 3 states and 2550 transitions. [2024-11-09 07:10:14,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 260 transitions, 1353 flow [2024-11-09 07:10:14,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 260 transitions, 752 flow, removed 300 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:14,368 INFO L231 Difference]: Finished difference. Result has 315 places, 259 transitions, 678 flow [2024-11-09 07:10:14,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=678, PETRI_PLACES=315, PETRI_TRANSITIONS=259} [2024-11-09 07:10:14,369 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 0 predicate places. [2024-11-09 07:10:14,369 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 259 transitions, 678 flow [2024-11-09 07:10:14,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 837.3333333333334) internal successors, (2512), 3 states have internal predecessors, (2512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:14,370 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:14,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2024-11-09 07:10:14,370 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:14,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash 529102797, now seen corresponding path program 1 times [2024-11-09 07:10:14,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:14,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953468917] [2024-11-09 07:10:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:14,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:14,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:14,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:14,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953468917] [2024-11-09 07:10:14,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953468917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:14,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:14,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:14,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6792636] [2024-11-09 07:10:14,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:14,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:14,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:14,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:14,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:14,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 782 out of 1031 [2024-11-09 07:10:14,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 259 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 783.0) internal successors, (2349), 3 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:14,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 782 of 1031 [2024-11-09 07:10:14,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:14,658 INFO L124 PetriNetUnfolderBase]: 28/1210 cut-off events. [2024-11-09 07:10:14,658 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2024-11-09 07:10:14,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 1210 events. 28/1210 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 2714 event pairs, 0 based on Foata normal form. 27/1182 useless extension candidates. Maximal degree in co-relation 1466. Up to 140 conditions per place. [2024-11-09 07:10:14,669 INFO L140 encePairwiseOnDemand]: 1025/1031 looper letters, 34 selfloop transitions, 1 changer transitions 24/254 dead transitions. [2024-11-09 07:10:14,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 254 transitions, 742 flow [2024-11-09 07:10:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2388 transitions. [2024-11-09 07:10:14,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7720659553831232 [2024-11-09 07:10:14,670 INFO L175 Difference]: Start difference. First operand has 315 places, 259 transitions, 678 flow. Second operand 3 states and 2388 transitions. [2024-11-09 07:10:14,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 254 transitions, 742 flow [2024-11-09 07:10:14,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 254 transitions, 738 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:14,674 INFO L231 Difference]: Finished difference. Result has 309 places, 230 transitions, 616 flow [2024-11-09 07:10:14,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=309, PETRI_TRANSITIONS=230} [2024-11-09 07:10:14,675 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -6 predicate places. [2024-11-09 07:10:14,675 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 230 transitions, 616 flow [2024-11-09 07:10:14,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 783.0) internal successors, (2349), 3 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:14,675 INFO L204 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:14,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2024-11-09 07:10:14,675 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:14,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:14,676 INFO L85 PathProgramCache]: Analyzing trace with hash -156249702, now seen corresponding path program 1 times [2024-11-09 07:10:14,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:14,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637135367] [2024-11-09 07:10:14,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:14,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:14,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4758 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4758 trivial. 0 not checked. [2024-11-09 07:10:14,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:14,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637135367] [2024-11-09 07:10:14,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637135367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:14,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:14,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:14,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702171293] [2024-11-09 07:10:14,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:14,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:14,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:14,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:14,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 864 out of 1031 [2024-11-09 07:10:14,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 230 transitions, 616 flow. Second operand has 4 states, 4 states have (on average 872.0) internal successors, (3488), 4 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:14,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:14,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 864 of 1031 [2024-11-09 07:10:14,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:15,024 INFO L124 PetriNetUnfolderBase]: 0/561 cut-off events. [2024-11-09 07:10:15,024 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2024-11-09 07:10:15,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 561 events. 0/561 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 311 event pairs, 0 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 0. Up to 29 conditions per place. [2024-11-09 07:10:15,025 INFO L140 encePairwiseOnDemand]: 1027/1031 looper letters, 30 selfloop transitions, 3 changer transitions 0/229 dead transitions. [2024-11-09 07:10:15,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 229 transitions, 680 flow [2024-11-09 07:10:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:15,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3490 transitions. [2024-11-09 07:10:15,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462657613967022 [2024-11-09 07:10:15,028 INFO L175 Difference]: Start difference. First operand has 309 places, 230 transitions, 616 flow. Second operand 4 states and 3490 transitions. [2024-11-09 07:10:15,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 229 transitions, 680 flow [2024-11-09 07:10:15,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 229 transitions, 679 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:15,032 INFO L231 Difference]: Finished difference. Result has 286 places, 229 transitions, 619 flow [2024-11-09 07:10:15,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1031, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=619, PETRI_PLACES=286, PETRI_TRANSITIONS=229} [2024-11-09 07:10:15,033 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-11-09 07:10:15,033 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 229 transitions, 619 flow [2024-11-09 07:10:15,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 872.0) internal successors, (3488), 4 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,034 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:15,034 INFO L204 CegarLoopForPetriNet]: trace histogram [27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:15,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2024-11-09 07:10:15,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2024-11-09 07:10:15,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash 550773438, now seen corresponding path program 1 times [2024-11-09 07:10:15,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:15,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394876249] [2024-11-09 07:10:15,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:15,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:15,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:15,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:15,190 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:15,190 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 34 remaining) [2024-11-09 07:10:15,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 34 remaining) [2024-11-09 07:10:15,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 34 remaining) [2024-11-09 07:10:15,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (30 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (28 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 34 remaining) [2024-11-09 07:10:15,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 34 remaining) [2024-11-09 07:10:15,192 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 34 remaining) [2024-11-09 07:10:15,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 34 remaining) [2024-11-09 07:10:15,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 34 remaining) [2024-11-09 07:10:15,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 34 remaining) [2024-11-09 07:10:15,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2024-11-09 07:10:15,194 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:15,194 WARN L244 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:15,194 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2024-11-09 07:10:15,309 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:15,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1067 places, 1068 transitions, 3756 flow [2024-11-09 07:10:15,618 INFO L124 PetriNetUnfolderBase]: 142/1820 cut-off events. [2024-11-09 07:10:15,619 INFO L125 PetriNetUnfolderBase]: For 3627/3627 co-relation queries the response was YES. [2024-11-09 07:10:15,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1820 events. 142/1820 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4979 event pairs, 0 based on Foata normal form. 0/1590 useless extension candidates. Maximal degree in co-relation 2281. Up to 56 conditions per place. [2024-11-09 07:10:15,636 INFO L82 GeneralOperation]: Start removeDead. Operand has 1067 places, 1068 transitions, 3756 flow [2024-11-09 07:10:15,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 271 transitions, 1355 flow [2024-11-09 07:10:15,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:15,639 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:15,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-09 07:10:15,640 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:15,640 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:15,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:15,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:15,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:15,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:15,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:15,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1390267691, now seen corresponding path program 1 times [2024-11-09 07:10:15,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:15,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593565200] [2024-11-09 07:10:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:15,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:15,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:15,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593565200] [2024-11-09 07:10:15,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593565200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:15,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:15,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:15,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243433667] [2024-11-09 07:10:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:15,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:15,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:15,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:15,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1068 [2024-11-09 07:10:15,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 271 transitions, 1355 flow. Second operand has 3 states, 3 states have (on average 867.3333333333334) internal successors, (2602), 3 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:15,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1068 [2024-11-09 07:10:15,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:15,972 INFO L124 PetriNetUnfolderBase]: 57/1398 cut-off events. [2024-11-09 07:10:15,972 INFO L125 PetriNetUnfolderBase]: For 4033/4033 co-relation queries the response was YES. [2024-11-09 07:10:15,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2092 conditions, 1398 events. 57/1398 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 3937 event pairs, 28 based on Foata normal form. 57/1338 useless extension candidates. Maximal degree in co-relation 1975. Up to 202 conditions per place. [2024-11-09 07:10:15,985 INFO L140 encePairwiseOnDemand]: 1062/1068 looper letters, 37 selfloop transitions, 2 changer transitions 1/267 dead transitions. [2024-11-09 07:10:15,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 267 transitions, 1425 flow [2024-11-09 07:10:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2641 transitions. [2024-11-09 07:10:15,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8242821473158551 [2024-11-09 07:10:15,988 INFO L175 Difference]: Start difference. First operand has 324 places, 271 transitions, 1355 flow. Second operand 3 states and 2641 transitions. [2024-11-09 07:10:15,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 267 transitions, 1425 flow [2024-11-09 07:10:15,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 267 transitions, 774 flow, removed 325 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:15,994 INFO L231 Difference]: Finished difference. Result has 324 places, 266 transitions, 698 flow [2024-11-09 07:10:15,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=324, PETRI_TRANSITIONS=266} [2024-11-09 07:10:15,995 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 0 predicate places. [2024-11-09 07:10:15,995 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 266 transitions, 698 flow [2024-11-09 07:10:15,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 867.3333333333334) internal successors, (2602), 3 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:15,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:15,996 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:15,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2024-11-09 07:10:15,996 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:15,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:15,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1111052281, now seen corresponding path program 1 times [2024-11-09 07:10:15,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:15,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103795201] [2024-11-09 07:10:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:15,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:16,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:16,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103795201] [2024-11-09 07:10:16,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103795201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:16,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:16,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:16,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828559425] [2024-11-09 07:10:16,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:16,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:16,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:16,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 810 out of 1068 [2024-11-09 07:10:16,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 266 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 811.0) internal successors, (2433), 3 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:16,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 810 of 1068 [2024-11-09 07:10:16,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:16,375 INFO L124 PetriNetUnfolderBase]: 29/1254 cut-off events. [2024-11-09 07:10:16,375 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-11-09 07:10:16,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1254 events. 29/1254 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 2953 event pairs, 0 based on Foata normal form. 28/1225 useless extension candidates. Maximal degree in co-relation 1520. Up to 145 conditions per place. [2024-11-09 07:10:16,391 INFO L140 encePairwiseOnDemand]: 1062/1068 looper letters, 35 selfloop transitions, 1 changer transitions 24/261 dead transitions. [2024-11-09 07:10:16,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 261 transitions, 764 flow [2024-11-09 07:10:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2473 transitions. [2024-11-09 07:10:16,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7718476903870163 [2024-11-09 07:10:16,395 INFO L175 Difference]: Start difference. First operand has 324 places, 266 transitions, 698 flow. Second operand 3 states and 2473 transitions. [2024-11-09 07:10:16,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 261 transitions, 764 flow [2024-11-09 07:10:16,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 261 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:16,399 INFO L231 Difference]: Finished difference. Result has 318 places, 237 transitions, 636 flow [2024-11-09 07:10:16,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=318, PETRI_TRANSITIONS=237} [2024-11-09 07:10:16,400 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -6 predicate places. [2024-11-09 07:10:16,400 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 237 transitions, 636 flow [2024-11-09 07:10:16,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 811.0) internal successors, (2433), 3 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:16,401 INFO L204 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:16,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2024-11-09 07:10:16,401 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:16,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:16,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1947225494, now seen corresponding path program 1 times [2024-11-09 07:10:16,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:16,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689137040] [2024-11-09 07:10:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:16,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5130 trivial. 0 not checked. [2024-11-09 07:10:16,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:16,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689137040] [2024-11-09 07:10:16,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689137040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:16,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:16,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413538366] [2024-11-09 07:10:16,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:16,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:16,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:16,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:16,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:16,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 895 out of 1068 [2024-11-09 07:10:16,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 237 transitions, 636 flow. Second operand has 4 states, 4 states have (on average 903.25) internal successors, (3613), 4 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:16,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 895 of 1068 [2024-11-09 07:10:16,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:16,735 INFO L124 PetriNetUnfolderBase]: 0/581 cut-off events. [2024-11-09 07:10:16,735 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2024-11-09 07:10:16,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 581 events. 0/581 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 323 event pairs, 0 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 0. Up to 30 conditions per place. [2024-11-09 07:10:16,736 INFO L140 encePairwiseOnDemand]: 1064/1068 looper letters, 31 selfloop transitions, 3 changer transitions 0/236 dead transitions. [2024-11-09 07:10:16,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 236 transitions, 702 flow [2024-11-09 07:10:16,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3615 transitions. [2024-11-09 07:10:16,737 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8462078651685393 [2024-11-09 07:10:16,737 INFO L175 Difference]: Start difference. First operand has 318 places, 237 transitions, 636 flow. Second operand 4 states and 3615 transitions. [2024-11-09 07:10:16,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 236 transitions, 702 flow [2024-11-09 07:10:16,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 236 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:16,740 INFO L231 Difference]: Finished difference. Result has 295 places, 236 transitions, 639 flow [2024-11-09 07:10:16,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1068, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=639, PETRI_PLACES=295, PETRI_TRANSITIONS=236} [2024-11-09 07:10:16,741 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, -29 predicate places. [2024-11-09 07:10:16,741 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 236 transitions, 639 flow [2024-11-09 07:10:16,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 903.25) internal successors, (3613), 4 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:16,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:16,742 INFO L204 CegarLoopForPetriNet]: trace histogram [28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:16,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2024-11-09 07:10:16,742 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-11-09 07:10:16,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:16,742 INFO L85 PathProgramCache]: Analyzing trace with hash -426544326, now seen corresponding path program 1 times [2024-11-09 07:10:16,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:16,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427251423] [2024-11-09 07:10:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:16,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:16,784 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:16,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:16,884 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:16,884 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 35 remaining) [2024-11-09 07:10:16,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 35 remaining) [2024-11-09 07:10:16,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 35 remaining) [2024-11-09 07:10:16,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 35 remaining) [2024-11-09 07:10:16,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 35 remaining) [2024-11-09 07:10:16,884 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 35 remaining) [2024-11-09 07:10:16,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 35 remaining) [2024-11-09 07:10:16,886 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 35 remaining) [2024-11-09 07:10:16,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 35 remaining) [2024-11-09 07:10:16,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2024-11-09 07:10:16,887 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:16,888 WARN L244 ceAbstractionStarter]: 27 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:16,888 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 28 thread instances. [2024-11-09 07:10:17,012 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:17,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1104 places, 1105 transitions, 3946 flow [2024-11-09 07:10:17,328 INFO L124 PetriNetUnfolderBase]: 147/1884 cut-off events. [2024-11-09 07:10:17,328 INFO L125 PetriNetUnfolderBase]: For 4032/4032 co-relation queries the response was YES. [2024-11-09 07:10:17,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1884 events. 147/1884 cut-off events. For 4032/4032 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5375 event pairs, 0 based on Foata normal form. 0/1646 useless extension candidates. Maximal degree in co-relation 2376. Up to 58 conditions per place. [2024-11-09 07:10:17,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 1104 places, 1105 transitions, 3946 flow [2024-11-09 07:10:17,349 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 333 places, 278 transitions, 1427 flow [2024-11-09 07:10:17,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:17,350 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:17,350 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-11-09 07:10:17,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:17,351 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:17,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:17,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:17,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:17,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:17,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1799678987, now seen corresponding path program 1 times [2024-11-09 07:10:17,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:17,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121392867] [2024-11-09 07:10:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:17,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:17,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121392867] [2024-11-09 07:10:17,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121392867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:17,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:17,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:17,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171162300] [2024-11-09 07:10:17,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:17,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:17,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:17,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:17,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:17,469 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 896 out of 1105 [2024-11-09 07:10:17,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 278 transitions, 1427 flow. Second operand has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:17,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:17,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 896 of 1105 [2024-11-09 07:10:17,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:17,702 INFO L124 PetriNetUnfolderBase]: 59/1447 cut-off events. [2024-11-09 07:10:17,702 INFO L125 PetriNetUnfolderBase]: For 4467/4467 co-relation queries the response was YES. [2024-11-09 07:10:17,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 1447 events. 59/1447 cut-off events. For 4467/4467 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3995 event pairs, 29 based on Foata normal form. 30/1356 useless extension candidates. Maximal degree in co-relation 2061. Up to 209 conditions per place. [2024-11-09 07:10:17,716 INFO L140 encePairwiseOnDemand]: 1099/1105 looper letters, 38 selfloop transitions, 2 changer transitions 1/274 dead transitions. [2024-11-09 07:10:17,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 274 transitions, 1499 flow [2024-11-09 07:10:17,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:17,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:17,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2732 transitions. [2024-11-09 07:10:17,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8241327300150829 [2024-11-09 07:10:17,718 INFO L175 Difference]: Start difference. First operand has 333 places, 278 transitions, 1427 flow. Second operand 3 states and 2732 transitions. [2024-11-09 07:10:17,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 274 transitions, 1499 flow [2024-11-09 07:10:17,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 274 transitions, 796 flow, removed 351 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:17,725 INFO L231 Difference]: Finished difference. Result has 333 places, 273 transitions, 718 flow [2024-11-09 07:10:17,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=333, PETRI_TRANSITIONS=273} [2024-11-09 07:10:17,725 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, 0 predicate places. [2024-11-09 07:10:17,725 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 273 transitions, 718 flow [2024-11-09 07:10:17,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 897.3333333333334) internal successors, (2692), 3 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:17,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:17,726 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:17,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2024-11-09 07:10:17,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:17,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:17,726 INFO L85 PathProgramCache]: Analyzing trace with hash 176948042, now seen corresponding path program 1 times [2024-11-09 07:10:17,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:17,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463609045] [2024-11-09 07:10:17,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:17,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:17,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:17,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:17,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463609045] [2024-11-09 07:10:17,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463609045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:17,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:17,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819689324] [2024-11-09 07:10:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:17,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:17,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:17,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:17,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:17,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 838 out of 1105 [2024-11-09 07:10:17,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 273 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 839.0) internal successors, (2517), 3 states have internal predecessors, (2517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:17,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:17,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 838 of 1105 [2024-11-09 07:10:17,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:18,030 INFO L124 PetriNetUnfolderBase]: 30/1298 cut-off events. [2024-11-09 07:10:18,030 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-11-09 07:10:18,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1623 conditions, 1298 events. 30/1298 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3002 event pairs, 0 based on Foata normal form. 29/1268 useless extension candidates. Maximal degree in co-relation 1574. Up to 150 conditions per place. [2024-11-09 07:10:18,041 INFO L140 encePairwiseOnDemand]: 1099/1105 looper letters, 36 selfloop transitions, 1 changer transitions 24/268 dead transitions. [2024-11-09 07:10:18,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 268 transitions, 786 flow [2024-11-09 07:10:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2558 transitions. [2024-11-09 07:10:18,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7716440422322776 [2024-11-09 07:10:18,043 INFO L175 Difference]: Start difference. First operand has 333 places, 273 transitions, 718 flow. Second operand 3 states and 2558 transitions. [2024-11-09 07:10:18,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 268 transitions, 786 flow [2024-11-09 07:10:18,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 268 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:18,046 INFO L231 Difference]: Finished difference. Result has 327 places, 244 transitions, 656 flow [2024-11-09 07:10:18,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=327, PETRI_TRANSITIONS=244} [2024-11-09 07:10:18,047 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -6 predicate places. [2024-11-09 07:10:18,047 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 244 transitions, 656 flow [2024-11-09 07:10:18,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 839.0) internal successors, (2517), 3 states have internal predecessors, (2517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:18,047 INFO L204 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:18,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2024-11-09 07:10:18,047 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:18,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:18,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1106291167, now seen corresponding path program 1 times [2024-11-09 07:10:18,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:18,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019810129] [2024-11-09 07:10:18,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:18,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:18,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5516 trivial. 0 not checked. [2024-11-09 07:10:18,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:18,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019810129] [2024-11-09 07:10:18,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019810129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:18,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:18,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:18,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833141181] [2024-11-09 07:10:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:18,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:18,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:18,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:18,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:18,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 1105 [2024-11-09 07:10:18,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 244 transitions, 656 flow. Second operand has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:18,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 1105 [2024-11-09 07:10:18,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:18,325 INFO L124 PetriNetUnfolderBase]: 0/601 cut-off events. [2024-11-09 07:10:18,326 INFO L125 PetriNetUnfolderBase]: For 460/460 co-relation queries the response was YES. [2024-11-09 07:10:18,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 601 events. 0/601 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 335 event pairs, 0 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 0. Up to 31 conditions per place. [2024-11-09 07:10:18,326 INFO L140 encePairwiseOnDemand]: 1101/1105 looper letters, 32 selfloop transitions, 3 changer transitions 0/243 dead transitions. [2024-11-09 07:10:18,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 243 transitions, 724 flow [2024-11-09 07:10:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3740 transitions. [2024-11-09 07:10:18,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8461538461538461 [2024-11-09 07:10:18,328 INFO L175 Difference]: Start difference. First operand has 327 places, 244 transitions, 656 flow. Second operand 4 states and 3740 transitions. [2024-11-09 07:10:18,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 243 transitions, 724 flow [2024-11-09 07:10:18,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 243 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:18,331 INFO L231 Difference]: Finished difference. Result has 304 places, 243 transitions, 659 flow [2024-11-09 07:10:18,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1105, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=659, PETRI_PLACES=304, PETRI_TRANSITIONS=243} [2024-11-09 07:10:18,332 INFO L277 CegarLoopForPetriNet]: 333 programPoint places, -29 predicate places. [2024-11-09 07:10:18,332 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 243 transitions, 659 flow [2024-11-09 07:10:18,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 934.5) internal successors, (3738), 4 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:18,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:18,332 INFO L204 CegarLoopForPetriNet]: trace histogram [29, 29, 29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:18,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2024-11-09 07:10:18,332 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 07:10:18,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash -401159326, now seen corresponding path program 1 times [2024-11-09 07:10:18,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:18,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654504138] [2024-11-09 07:10:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:18,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:18,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:18,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:18,578 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:18,578 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2024-11-09 07:10:18,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2024-11-09 07:10:18,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2024-11-09 07:10:18,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2024-11-09 07:10:18,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2024-11-09 07:10:18,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2024-11-09 07:10:18,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2024-11-09 07:10:18,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2024-11-09 07:10:18,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2024-11-09 07:10:18,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2024-11-09 07:10:18,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2024-11-09 07:10:18,582 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2024-11-09 07:10:18,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2024-11-09 07:10:18,582 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:18,582 WARN L244 ceAbstractionStarter]: 28 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:18,582 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 29 thread instances. [2024-11-09 07:10:18,703 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:18,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1141 places, 1142 transitions, 4140 flow [2024-11-09 07:10:19,004 INFO L124 PetriNetUnfolderBase]: 152/1948 cut-off events. [2024-11-09 07:10:19,004 INFO L125 PetriNetUnfolderBase]: For 4466/4466 co-relation queries the response was YES. [2024-11-09 07:10:19,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2531 conditions, 1948 events. 152/1948 cut-off events. For 4466/4466 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5451 event pairs, 0 based on Foata normal form. 0/1702 useless extension candidates. Maximal degree in co-relation 2472. Up to 60 conditions per place. [2024-11-09 07:10:19,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 1141 places, 1142 transitions, 4140 flow [2024-11-09 07:10:19,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 342 places, 285 transitions, 1501 flow [2024-11-09 07:10:19,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:19,027 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:19,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-09 07:10:19,028 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:19,028 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:19,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:19,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:19,028 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:19,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:19,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:19,029 INFO L85 PathProgramCache]: Analyzing trace with hash -369728693, now seen corresponding path program 1 times [2024-11-09 07:10:19,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:19,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744018055] [2024-11-09 07:10:19,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:19,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:19,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:19,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744018055] [2024-11-09 07:10:19,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744018055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:19,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:19,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:19,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811786690] [2024-11-09 07:10:19,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:19,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:19,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:19,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:19,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:19,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 926 out of 1142 [2024-11-09 07:10:19,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 285 transitions, 1501 flow. Second operand has 3 states, 3 states have (on average 927.3333333333334) internal successors, (2782), 3 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:19,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:19,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 926 of 1142 [2024-11-09 07:10:19,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:19,404 INFO L124 PetriNetUnfolderBase]: 61/1496 cut-off events. [2024-11-09 07:10:19,404 INFO L125 PetriNetUnfolderBase]: For 4931/4931 co-relation queries the response was YES. [2024-11-09 07:10:19,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1496 events. 61/1496 cut-off events. For 4931/4931 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4128 event pairs, 30 based on Foata normal form. 31/1402 useless extension candidates. Maximal degree in co-relation 2148. Up to 216 conditions per place. [2024-11-09 07:10:19,419 INFO L140 encePairwiseOnDemand]: 1136/1142 looper letters, 39 selfloop transitions, 2 changer transitions 1/281 dead transitions. [2024-11-09 07:10:19,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 281 transitions, 1575 flow [2024-11-09 07:10:19,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:19,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:19,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2823 transitions. [2024-11-09 07:10:19,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8239929947460596 [2024-11-09 07:10:19,421 INFO L175 Difference]: Start difference. First operand has 342 places, 285 transitions, 1501 flow. Second operand 3 states and 2823 transitions. [2024-11-09 07:10:19,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 281 transitions, 1575 flow [2024-11-09 07:10:19,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 281 transitions, 818 flow, removed 378 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:19,429 INFO L231 Difference]: Finished difference. Result has 342 places, 280 transitions, 738 flow [2024-11-09 07:10:19,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=738, PETRI_PLACES=342, PETRI_TRANSITIONS=280} [2024-11-09 07:10:19,429 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, 0 predicate places. [2024-11-09 07:10:19,429 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 280 transitions, 738 flow [2024-11-09 07:10:19,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 927.3333333333334) internal successors, (2782), 3 states have internal predecessors, (2782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:19,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:19,430 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:19,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2024-11-09 07:10:19,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2021757376, now seen corresponding path program 1 times [2024-11-09 07:10:19,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:19,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888853902] [2024-11-09 07:10:19,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:19,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:19,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:19,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888853902] [2024-11-09 07:10:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888853902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:19,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:19,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822024513] [2024-11-09 07:10:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:19,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:19,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:19,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:19,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 866 out of 1142 [2024-11-09 07:10:19,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 280 transitions, 738 flow. Second operand has 3 states, 3 states have (on average 867.0) internal successors, (2601), 3 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:19,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:19,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 866 of 1142 [2024-11-09 07:10:19,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:19,758 INFO L124 PetriNetUnfolderBase]: 31/1342 cut-off events. [2024-11-09 07:10:19,758 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-09 07:10:19,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 1342 events. 31/1342 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3108 event pairs, 0 based on Foata normal form. 30/1311 useless extension candidates. Maximal degree in co-relation 1628. Up to 155 conditions per place. [2024-11-09 07:10:19,770 INFO L140 encePairwiseOnDemand]: 1136/1142 looper letters, 37 selfloop transitions, 1 changer transitions 24/275 dead transitions. [2024-11-09 07:10:19,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 275 transitions, 808 flow [2024-11-09 07:10:19,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:19,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2643 transitions. [2024-11-09 07:10:19,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7714535901926445 [2024-11-09 07:10:19,772 INFO L175 Difference]: Start difference. First operand has 342 places, 280 transitions, 738 flow. Second operand 3 states and 2643 transitions. [2024-11-09 07:10:19,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 275 transitions, 808 flow [2024-11-09 07:10:19,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 275 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:19,775 INFO L231 Difference]: Finished difference. Result has 336 places, 251 transitions, 676 flow [2024-11-09 07:10:19,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=336, PETRI_TRANSITIONS=251} [2024-11-09 07:10:19,775 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, -6 predicate places. [2024-11-09 07:10:19,775 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 251 transitions, 676 flow [2024-11-09 07:10:19,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 867.0) internal successors, (2601), 3 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:19,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:19,776 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:19,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2024-11-09 07:10:19,776 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:19,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:19,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1845443679, now seen corresponding path program 1 times [2024-11-09 07:10:19,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:19,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745331548] [2024-11-09 07:10:19,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:19,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5916 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5916 trivial. 0 not checked. [2024-11-09 07:10:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745331548] [2024-11-09 07:10:19,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745331548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:19,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:19,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:19,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500730883] [2024-11-09 07:10:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:19,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:19,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:19,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:19,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 957 out of 1142 [2024-11-09 07:10:19,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 251 transitions, 676 flow. Second operand has 4 states, 4 states have (on average 965.75) internal successors, (3863), 4 states have internal predecessors, (3863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:19,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:19,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 957 of 1142 [2024-11-09 07:10:19,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:20,056 INFO L124 PetriNetUnfolderBase]: 0/621 cut-off events. [2024-11-09 07:10:20,057 INFO L125 PetriNetUnfolderBase]: For 491/491 co-relation queries the response was YES. [2024-11-09 07:10:20,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 621 events. 0/621 cut-off events. For 491/491 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 347 event pairs, 0 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 0. Up to 32 conditions per place. [2024-11-09 07:10:20,057 INFO L140 encePairwiseOnDemand]: 1138/1142 looper letters, 33 selfloop transitions, 3 changer transitions 0/250 dead transitions. [2024-11-09 07:10:20,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 250 transitions, 746 flow [2024-11-09 07:10:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:20,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3865 transitions. [2024-11-09 07:10:20,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8461033274956217 [2024-11-09 07:10:20,059 INFO L175 Difference]: Start difference. First operand has 336 places, 251 transitions, 676 flow. Second operand 4 states and 3865 transitions. [2024-11-09 07:10:20,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 250 transitions, 746 flow [2024-11-09 07:10:20,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 250 transitions, 745 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:20,062 INFO L231 Difference]: Finished difference. Result has 313 places, 250 transitions, 679 flow [2024-11-09 07:10:20,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1142, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=679, PETRI_PLACES=313, PETRI_TRANSITIONS=250} [2024-11-09 07:10:20,062 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, -29 predicate places. [2024-11-09 07:10:20,062 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 250 transitions, 679 flow [2024-11-09 07:10:20,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 965.75) internal successors, (3863), 4 states have internal predecessors, (3863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:20,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:20,063 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:20,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2024-11-09 07:10:20,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-09 07:10:20,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1656769386, now seen corresponding path program 1 times [2024-11-09 07:10:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:20,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283384482] [2024-11-09 07:10:20,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:20,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:20,111 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:20,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:20,232 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:20,232 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-09 07:10:20,233 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-09 07:10:20,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-09 07:10:20,235 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-09 07:10:20,236 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-09 07:10:20,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2024-11-09 07:10:20,237 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:20,237 WARN L244 ceAbstractionStarter]: 29 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:20,237 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 30 thread instances. [2024-11-09 07:10:20,367 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:20,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1178 places, 1179 transitions, 4338 flow [2024-11-09 07:10:20,840 INFO L124 PetriNetUnfolderBase]: 157/2012 cut-off events. [2024-11-09 07:10:20,840 INFO L125 PetriNetUnfolderBase]: For 4930/4930 co-relation queries the response was YES. [2024-11-09 07:10:20,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 2012 events. 157/2012 cut-off events. For 4930/4930 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5607 event pairs, 0 based on Foata normal form. 0/1758 useless extension candidates. Maximal degree in co-relation 2569. Up to 62 conditions per place. [2024-11-09 07:10:20,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 1178 places, 1179 transitions, 4338 flow [2024-11-09 07:10:20,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 351 places, 292 transitions, 1577 flow [2024-11-09 07:10:20,856 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:20,857 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:20,857 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-09 07:10:20,858 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:20,858 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:20,858 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:20,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:20,858 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:20,858 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:20,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash -822988053, now seen corresponding path program 1 times [2024-11-09 07:10:20,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:20,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30886307] [2024-11-09 07:10:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:20,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:20,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:20,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30886307] [2024-11-09 07:10:20,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30886307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:20,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:20,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:20,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355422992] [2024-11-09 07:10:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:20,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:20,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:20,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 956 out of 1179 [2024-11-09 07:10:20,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 292 transitions, 1577 flow. Second operand has 3 states, 3 states have (on average 957.3333333333334) internal successors, (2872), 3 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:20,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:20,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 956 of 1179 [2024-11-09 07:10:20,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:21,394 INFO L124 PetriNetUnfolderBase]: 63/1545 cut-off events. [2024-11-09 07:10:21,394 INFO L125 PetriNetUnfolderBase]: For 5426/5426 co-relation queries the response was YES. [2024-11-09 07:10:21,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2359 conditions, 1545 events. 63/1545 cut-off events. For 5426/5426 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4277 event pairs, 31 based on Foata normal form. 32/1448 useless extension candidates. Maximal degree in co-relation 2236. Up to 223 conditions per place. [2024-11-09 07:10:21,412 INFO L140 encePairwiseOnDemand]: 1173/1179 looper letters, 40 selfloop transitions, 2 changer transitions 1/288 dead transitions. [2024-11-09 07:10:21,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 288 transitions, 1653 flow [2024-11-09 07:10:21,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:21,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2914 transitions. [2024-11-09 07:10:21,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8238620299689002 [2024-11-09 07:10:21,415 INFO L175 Difference]: Start difference. First operand has 351 places, 292 transitions, 1577 flow. Second operand 3 states and 2914 transitions. [2024-11-09 07:10:21,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 288 transitions, 1653 flow [2024-11-09 07:10:21,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 288 transitions, 840 flow, removed 406 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:21,426 INFO L231 Difference]: Finished difference. Result has 351 places, 287 transitions, 758 flow [2024-11-09 07:10:21,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=351, PETRI_TRANSITIONS=287} [2024-11-09 07:10:21,427 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, 0 predicate places. [2024-11-09 07:10:21,427 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 287 transitions, 758 flow [2024-11-09 07:10:21,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 957.3333333333334) internal successors, (2872), 3 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:21,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:21,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:21,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2024-11-09 07:10:21,428 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:21,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:21,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1944454309, now seen corresponding path program 1 times [2024-11-09 07:10:21,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:21,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346819461] [2024-11-09 07:10:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:21,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:21,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346819461] [2024-11-09 07:10:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346819461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:21,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911207731] [2024-11-09 07:10:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:21,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:21,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:21,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:21,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 894 out of 1179 [2024-11-09 07:10:21,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 287 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:21,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:21,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 894 of 1179 [2024-11-09 07:10:21,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:21,913 INFO L124 PetriNetUnfolderBase]: 32/1386 cut-off events. [2024-11-09 07:10:21,913 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-11-09 07:10:21,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1733 conditions, 1386 events. 32/1386 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3214 event pairs, 0 based on Foata normal form. 31/1354 useless extension candidates. Maximal degree in co-relation 1682. Up to 160 conditions per place. [2024-11-09 07:10:21,926 INFO L140 encePairwiseOnDemand]: 1173/1179 looper letters, 38 selfloop transitions, 1 changer transitions 24/282 dead transitions. [2024-11-09 07:10:21,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 282 transitions, 830 flow [2024-11-09 07:10:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:21,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:21,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2728 transitions. [2024-11-09 07:10:21,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7712750918857789 [2024-11-09 07:10:21,929 INFO L175 Difference]: Start difference. First operand has 351 places, 287 transitions, 758 flow. Second operand 3 states and 2728 transitions. [2024-11-09 07:10:21,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 282 transitions, 830 flow [2024-11-09 07:10:21,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 282 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:21,933 INFO L231 Difference]: Finished difference. Result has 345 places, 258 transitions, 696 flow [2024-11-09 07:10:21,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=696, PETRI_PLACES=345, PETRI_TRANSITIONS=258} [2024-11-09 07:10:21,934 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -6 predicate places. [2024-11-09 07:10:21,934 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 258 transitions, 696 flow [2024-11-09 07:10:21,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 895.0) internal successors, (2685), 3 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:21,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:21,934 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:21,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2024-11-09 07:10:21,934 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:21,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:21,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1076413636, now seen corresponding path program 1 times [2024-11-09 07:10:21,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:21,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292679308] [2024-11-09 07:10:21,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:21,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6330 trivial. 0 not checked. [2024-11-09 07:10:22,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:22,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292679308] [2024-11-09 07:10:22,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292679308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:22,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:22,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313844070] [2024-11-09 07:10:22,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:22,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:22,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 988 out of 1179 [2024-11-09 07:10:22,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 258 transitions, 696 flow. Second operand has 4 states, 4 states have (on average 997.0) internal successors, (3988), 4 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:22,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:22,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 988 of 1179 [2024-11-09 07:10:22,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:22,314 INFO L124 PetriNetUnfolderBase]: 0/641 cut-off events. [2024-11-09 07:10:22,314 INFO L125 PetriNetUnfolderBase]: For 523/523 co-relation queries the response was YES. [2024-11-09 07:10:22,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 641 events. 0/641 cut-off events. For 523/523 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 359 event pairs, 0 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 0. Up to 33 conditions per place. [2024-11-09 07:10:22,315 INFO L140 encePairwiseOnDemand]: 1175/1179 looper letters, 34 selfloop transitions, 3 changer transitions 0/257 dead transitions. [2024-11-09 07:10:22,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 257 transitions, 768 flow [2024-11-09 07:10:22,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:22,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:22,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3990 transitions. [2024-11-09 07:10:22,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8460559796437659 [2024-11-09 07:10:22,319 INFO L175 Difference]: Start difference. First operand has 345 places, 258 transitions, 696 flow. Second operand 4 states and 3990 transitions. [2024-11-09 07:10:22,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 257 transitions, 768 flow [2024-11-09 07:10:22,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 257 transitions, 767 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:22,323 INFO L231 Difference]: Finished difference. Result has 322 places, 257 transitions, 699 flow [2024-11-09 07:10:22,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1179, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=699, PETRI_PLACES=322, PETRI_TRANSITIONS=257} [2024-11-09 07:10:22,323 INFO L277 CegarLoopForPetriNet]: 351 programPoint places, -29 predicate places. [2024-11-09 07:10:22,324 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 257 transitions, 699 flow [2024-11-09 07:10:22,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 997.0) internal successors, (3988), 4 states have internal predecessors, (3988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:22,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:22,324 INFO L204 CegarLoopForPetriNet]: trace histogram [31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:22,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2024-11-09 07:10:22,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-09 07:10:22,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1373603786, now seen corresponding path program 1 times [2024-11-09 07:10:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456639866] [2024-11-09 07:10:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:22,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:22,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:22,488 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:22,488 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:22,488 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-09 07:10:22,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-09 07:10:22,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-09 07:10:22,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-09 07:10:22,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-09 07:10:22,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-09 07:10:22,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-09 07:10:22,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-09 07:10:22,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-09 07:10:22,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-09 07:10:22,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-09 07:10:22,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2024-11-09 07:10:22,493 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:22,493 WARN L244 ceAbstractionStarter]: 30 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:22,493 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 31 thread instances. [2024-11-09 07:10:22,626 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:22,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1215 places, 1216 transitions, 4540 flow [2024-11-09 07:10:23,103 INFO L124 PetriNetUnfolderBase]: 162/2076 cut-off events. [2024-11-09 07:10:23,103 INFO L125 PetriNetUnfolderBase]: For 5425/5425 co-relation queries the response was YES. [2024-11-09 07:10:23,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 2076 events. 162/2076 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5920 event pairs, 0 based on Foata normal form. 0/1814 useless extension candidates. Maximal degree in co-relation 2667. Up to 64 conditions per place. [2024-11-09 07:10:23,127 INFO L82 GeneralOperation]: Start removeDead. Operand has 1215 places, 1216 transitions, 4540 flow [2024-11-09 07:10:23,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 299 transitions, 1655 flow [2024-11-09 07:10:23,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:23,132 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:23,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-09 07:10:23,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:23,134 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:23,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:23,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:23,134 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:23,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:23,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:23,134 INFO L85 PathProgramCache]: Analyzing trace with hash 439900907, now seen corresponding path program 1 times [2024-11-09 07:10:23,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:23,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80741378] [2024-11-09 07:10:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:23,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:23,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80741378] [2024-11-09 07:10:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80741378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:23,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:23,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:23,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752503014] [2024-11-09 07:10:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:23,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:23,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:23,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:23,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:23,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 986 out of 1216 [2024-11-09 07:10:23,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 299 transitions, 1655 flow. Second operand has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:23,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:23,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 986 of 1216 [2024-11-09 07:10:23,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:23,743 INFO L124 PetriNetUnfolderBase]: 65/1594 cut-off events. [2024-11-09 07:10:23,743 INFO L125 PetriNetUnfolderBase]: For 5953/5953 co-relation queries the response was YES. [2024-11-09 07:10:23,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 1594 events. 65/1594 cut-off events. For 5953/5953 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4375 event pairs, 32 based on Foata normal form. 33/1494 useless extension candidates. Maximal degree in co-relation 2325. Up to 230 conditions per place. [2024-11-09 07:10:23,753 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 41 selfloop transitions, 2 changer transitions 1/295 dead transitions. [2024-11-09 07:10:23,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 295 transitions, 1733 flow [2024-11-09 07:10:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3005 transitions. [2024-11-09 07:10:23,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8237390350877193 [2024-11-09 07:10:23,755 INFO L175 Difference]: Start difference. First operand has 360 places, 299 transitions, 1655 flow. Second operand 3 states and 3005 transitions. [2024-11-09 07:10:23,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 295 transitions, 1733 flow [2024-11-09 07:10:23,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 295 transitions, 862 flow, removed 435 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:23,765 INFO L231 Difference]: Finished difference. Result has 360 places, 294 transitions, 778 flow [2024-11-09 07:10:23,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=360, PETRI_TRANSITIONS=294} [2024-11-09 07:10:23,766 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, 0 predicate places. [2024-11-09 07:10:23,766 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 294 transitions, 778 flow [2024-11-09 07:10:23,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 987.3333333333334) internal successors, (2962), 3 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:23,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:23,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:23,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2024-11-09 07:10:23,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:23,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:23,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1163214875, now seen corresponding path program 1 times [2024-11-09 07:10:23,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:23,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006931151] [2024-11-09 07:10:23,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:23,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:23,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006931151] [2024-11-09 07:10:23,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006931151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:23,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:23,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034813715] [2024-11-09 07:10:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:23,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:23,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:23,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:23,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:23,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 922 out of 1216 [2024-11-09 07:10:23,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 294 transitions, 778 flow. Second operand has 3 states, 3 states have (on average 923.0) internal successors, (2769), 3 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:23,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:23,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 922 of 1216 [2024-11-09 07:10:23,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:24,124 INFO L124 PetriNetUnfolderBase]: 33/1430 cut-off events. [2024-11-09 07:10:24,124 INFO L125 PetriNetUnfolderBase]: For 557/557 co-relation queries the response was YES. [2024-11-09 07:10:24,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 1430 events. 33/1430 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3294 event pairs, 0 based on Foata normal form. 32/1397 useless extension candidates. Maximal degree in co-relation 1736. Up to 165 conditions per place. [2024-11-09 07:10:24,137 INFO L140 encePairwiseOnDemand]: 1210/1216 looper letters, 39 selfloop transitions, 1 changer transitions 24/289 dead transitions. [2024-11-09 07:10:24,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 289 transitions, 852 flow [2024-11-09 07:10:24,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2813 transitions. [2024-11-09 07:10:24,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7711074561403509 [2024-11-09 07:10:24,139 INFO L175 Difference]: Start difference. First operand has 360 places, 294 transitions, 778 flow. Second operand 3 states and 2813 transitions. [2024-11-09 07:10:24,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 289 transitions, 852 flow [2024-11-09 07:10:24,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 289 transitions, 848 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:24,143 INFO L231 Difference]: Finished difference. Result has 354 places, 265 transitions, 716 flow [2024-11-09 07:10:24,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=354, PETRI_TRANSITIONS=265} [2024-11-09 07:10:24,144 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -6 predicate places. [2024-11-09 07:10:24,144 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 265 transitions, 716 flow [2024-11-09 07:10:24,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 923.0) internal successors, (2769), 3 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:24,144 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:24,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2024-11-09 07:10:24,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:24,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1479159536, now seen corresponding path program 1 times [2024-11-09 07:10:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:24,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869591236] [2024-11-09 07:10:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:24,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6758 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6758 trivial. 0 not checked. [2024-11-09 07:10:24,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:24,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869591236] [2024-11-09 07:10:24,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869591236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:24,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:24,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:24,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424703798] [2024-11-09 07:10:24,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:24,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:24,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:24,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:24,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:24,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 1216 [2024-11-09 07:10:24,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 265 transitions, 716 flow. Second operand has 4 states, 4 states have (on average 1028.25) internal successors, (4113), 4 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:24,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 1216 [2024-11-09 07:10:24,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:24,444 INFO L124 PetriNetUnfolderBase]: 0/661 cut-off events. [2024-11-09 07:10:24,444 INFO L125 PetriNetUnfolderBase]: For 556/556 co-relation queries the response was YES. [2024-11-09 07:10:24,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 661 events. 0/661 cut-off events. For 556/556 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 372 event pairs, 0 based on Foata normal form. 0/661 useless extension candidates. Maximal degree in co-relation 0. Up to 34 conditions per place. [2024-11-09 07:10:24,445 INFO L140 encePairwiseOnDemand]: 1212/1216 looper letters, 35 selfloop transitions, 3 changer transitions 0/264 dead transitions. [2024-11-09 07:10:24,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 264 transitions, 790 flow [2024-11-09 07:10:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:24,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:24,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4115 transitions. [2024-11-09 07:10:24,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8460115131578947 [2024-11-09 07:10:24,446 INFO L175 Difference]: Start difference. First operand has 354 places, 265 transitions, 716 flow. Second operand 4 states and 4115 transitions. [2024-11-09 07:10:24,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 264 transitions, 790 flow [2024-11-09 07:10:24,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 264 transitions, 789 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:24,450 INFO L231 Difference]: Finished difference. Result has 331 places, 264 transitions, 719 flow [2024-11-09 07:10:24,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1216, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=719, PETRI_PLACES=331, PETRI_TRANSITIONS=264} [2024-11-09 07:10:24,450 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-09 07:10:24,450 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 264 transitions, 719 flow [2024-11-09 07:10:24,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1028.25) internal successors, (4113), 4 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:24,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:24,451 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:24,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2024-11-09 07:10:24,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-09 07:10:24,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1589633118, now seen corresponding path program 1 times [2024-11-09 07:10:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:24,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647791345] [2024-11-09 07:10:24,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:24,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:24,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:24,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:24,628 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:24,629 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-09 07:10:24,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-09 07:10:24,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-09 07:10:24,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-09 07:10:24,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-09 07:10:24,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-09 07:10:24,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-09 07:10:24,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-09 07:10:24,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-09 07:10:24,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-09 07:10:24,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-09 07:10:24,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-09 07:10:24,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-09 07:10:24,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2024-11-09 07:10:24,632 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:24,632 WARN L244 ceAbstractionStarter]: 31 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:24,632 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 32 thread instances. [2024-11-09 07:10:24,740 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:24,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1252 places, 1253 transitions, 4746 flow [2024-11-09 07:10:25,069 INFO L124 PetriNetUnfolderBase]: 167/2140 cut-off events. [2024-11-09 07:10:25,069 INFO L125 PetriNetUnfolderBase]: For 5952/5952 co-relation queries the response was YES. [2024-11-09 07:10:25,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2831 conditions, 2140 events. 167/2140 cut-off events. For 5952/5952 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5962 event pairs, 0 based on Foata normal form. 0/1870 useless extension candidates. Maximal degree in co-relation 2766. Up to 66 conditions per place. [2024-11-09 07:10:25,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 1252 places, 1253 transitions, 4746 flow [2024-11-09 07:10:25,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 369 places, 306 transitions, 1735 flow [2024-11-09 07:10:25,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:25,097 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:25,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-09 07:10:25,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:25,098 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:25,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:25,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:25,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:25,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:25,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:25,098 INFO L85 PathProgramCache]: Analyzing trace with hash -876029109, now seen corresponding path program 1 times [2024-11-09 07:10:25,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:25,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640924060] [2024-11-09 07:10:25,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:25,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:25,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640924060] [2024-11-09 07:10:25,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640924060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:25,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:25,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:25,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773127390] [2024-11-09 07:10:25,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:25,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:25,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:25,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:25,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:25,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1016 out of 1253 [2024-11-09 07:10:25,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 306 transitions, 1735 flow. Second operand has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:25,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1016 of 1253 [2024-11-09 07:10:25,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:25,520 INFO L124 PetriNetUnfolderBase]: 67/1643 cut-off events. [2024-11-09 07:10:25,520 INFO L125 PetriNetUnfolderBase]: For 6513/6513 co-relation queries the response was YES. [2024-11-09 07:10:25,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2542 conditions, 1643 events. 67/1643 cut-off events. For 6513/6513 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4634 event pairs, 33 based on Foata normal form. 67/1573 useless extension candidates. Maximal degree in co-relation 2415. Up to 237 conditions per place. [2024-11-09 07:10:25,539 INFO L140 encePairwiseOnDemand]: 1247/1253 looper letters, 42 selfloop transitions, 2 changer transitions 1/302 dead transitions. [2024-11-09 07:10:25,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 302 transitions, 1815 flow [2024-11-09 07:10:25,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:25,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3096 transitions. [2024-11-09 07:10:25,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8236233040702314 [2024-11-09 07:10:25,541 INFO L175 Difference]: Start difference. First operand has 369 places, 306 transitions, 1735 flow. Second operand 3 states and 3096 transitions. [2024-11-09 07:10:25,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 302 transitions, 1815 flow [2024-11-09 07:10:25,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 302 transitions, 884 flow, removed 465 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:25,552 INFO L231 Difference]: Finished difference. Result has 369 places, 301 transitions, 798 flow [2024-11-09 07:10:25,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=798, PETRI_PLACES=369, PETRI_TRANSITIONS=301} [2024-11-09 07:10:25,552 INFO L277 CegarLoopForPetriNet]: 369 programPoint places, 0 predicate places. [2024-11-09 07:10:25,552 INFO L471 AbstractCegarLoop]: Abstraction has has 369 places, 301 transitions, 798 flow [2024-11-09 07:10:25,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1017.3333333333334) internal successors, (3052), 3 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:25,553 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:25,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2024-11-09 07:10:25,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:25,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1540136960, now seen corresponding path program 1 times [2024-11-09 07:10:25,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:25,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614427053] [2024-11-09 07:10:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:25,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:25,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:25,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:25,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614427053] [2024-11-09 07:10:25,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614427053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:25,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:25,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:25,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122966949] [2024-11-09 07:10:25,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:25,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:25,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:25,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:25,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 950 out of 1253 [2024-11-09 07:10:25,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 301 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 951.0) internal successors, (2853), 3 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:25,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 950 of 1253 [2024-11-09 07:10:25,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:25,956 INFO L124 PetriNetUnfolderBase]: 34/1474 cut-off events. [2024-11-09 07:10:25,957 INFO L125 PetriNetUnfolderBase]: For 591/591 co-relation queries the response was YES. [2024-11-09 07:10:25,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1843 conditions, 1474 events. 34/1474 cut-off events. For 591/591 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3493 event pairs, 0 based on Foata normal form. 33/1440 useless extension candidates. Maximal degree in co-relation 1790. Up to 170 conditions per place. [2024-11-09 07:10:25,971 INFO L140 encePairwiseOnDemand]: 1247/1253 looper letters, 40 selfloop transitions, 1 changer transitions 24/296 dead transitions. [2024-11-09 07:10:25,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 296 transitions, 874 flow [2024-11-09 07:10:25,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:25,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:25,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2898 transitions. [2024-11-09 07:10:25,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.770949720670391 [2024-11-09 07:10:25,973 INFO L175 Difference]: Start difference. First operand has 369 places, 301 transitions, 798 flow. Second operand 3 states and 2898 transitions. [2024-11-09 07:10:25,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 296 transitions, 874 flow [2024-11-09 07:10:25,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 296 transitions, 870 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:25,977 INFO L231 Difference]: Finished difference. Result has 363 places, 272 transitions, 736 flow [2024-11-09 07:10:25,977 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=736, PETRI_PLACES=363, PETRI_TRANSITIONS=272} [2024-11-09 07:10:25,977 INFO L277 CegarLoopForPetriNet]: 369 programPoint places, -6 predicate places. [2024-11-09 07:10:25,977 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 272 transitions, 736 flow [2024-11-09 07:10:25,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 951.0) internal successors, (2853), 3 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:25,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:25,977 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:25,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2024-11-09 07:10:25,978 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:25,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1978492285, now seen corresponding path program 1 times [2024-11-09 07:10:25,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:25,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460075821] [2024-11-09 07:10:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:25,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 7200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2024-11-09 07:10:26,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:26,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460075821] [2024-11-09 07:10:26,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460075821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:26,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:26,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:26,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94380819] [2024-11-09 07:10:26,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:26,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:26,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:26,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:26,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:26,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1050 out of 1253 [2024-11-09 07:10:26,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 272 transitions, 736 flow. Second operand has 4 states, 4 states have (on average 1059.5) internal successors, (4238), 4 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:26,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:26,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1050 of 1253 [2024-11-09 07:10:26,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:26,316 INFO L124 PetriNetUnfolderBase]: 0/681 cut-off events. [2024-11-09 07:10:26,316 INFO L125 PetriNetUnfolderBase]: For 590/590 co-relation queries the response was YES. [2024-11-09 07:10:26,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 681 events. 0/681 cut-off events. For 590/590 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 383 event pairs, 0 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 0. Up to 35 conditions per place. [2024-11-09 07:10:26,317 INFO L140 encePairwiseOnDemand]: 1249/1253 looper letters, 36 selfloop transitions, 3 changer transitions 0/271 dead transitions. [2024-11-09 07:10:26,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 271 transitions, 812 flow [2024-11-09 07:10:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:26,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4240 transitions. [2024-11-09 07:10:26,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8459696727853152 [2024-11-09 07:10:26,320 INFO L175 Difference]: Start difference. First operand has 363 places, 272 transitions, 736 flow. Second operand 4 states and 4240 transitions. [2024-11-09 07:10:26,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 271 transitions, 812 flow [2024-11-09 07:10:26,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 271 transitions, 811 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:26,323 INFO L231 Difference]: Finished difference. Result has 340 places, 271 transitions, 739 flow [2024-11-09 07:10:26,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1253, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=340, PETRI_TRANSITIONS=271} [2024-11-09 07:10:26,323 INFO L277 CegarLoopForPetriNet]: 369 programPoint places, -29 predicate places. [2024-11-09 07:10:26,324 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 271 transitions, 739 flow [2024-11-09 07:10:26,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1059.5) internal successors, (4238), 4 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:26,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:26,324 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 33, 33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:26,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2024-11-09 07:10:26,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 07:10:26,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash -362908614, now seen corresponding path program 1 times [2024-11-09 07:10:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:26,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71952357] [2024-11-09 07:10:26,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:26,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:26,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:26,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:26,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-09 07:10:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-09 07:10:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-09 07:10:26,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-09 07:10:26,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2024-11-09 07:10:26,484 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:26,485 WARN L244 ceAbstractionStarter]: 32 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:26,485 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 33 thread instances. [2024-11-09 07:10:26,606 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:26,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1289 places, 1290 transitions, 4956 flow [2024-11-09 07:10:27,100 INFO L124 PetriNetUnfolderBase]: 172/2204 cut-off events. [2024-11-09 07:10:27,100 INFO L125 PetriNetUnfolderBase]: For 6512/6512 co-relation queries the response was YES. [2024-11-09 07:10:27,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 2204 events. 172/2204 cut-off events. For 6512/6512 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6294 event pairs, 0 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2866. Up to 68 conditions per place. [2024-11-09 07:10:27,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 1289 places, 1290 transitions, 4956 flow [2024-11-09 07:10:27,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 378 places, 313 transitions, 1817 flow [2024-11-09 07:10:27,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:27,122 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:27,122 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-09 07:10:27,123 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:27,123 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:27,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:27,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:27,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:27,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:27,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:27,124 INFO L85 PathProgramCache]: Analyzing trace with hash -475810805, now seen corresponding path program 1 times [2024-11-09 07:10:27,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:27,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386788578] [2024-11-09 07:10:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:27,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:27,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:27,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386788578] [2024-11-09 07:10:27,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386788578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:27,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:27,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:27,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14532387] [2024-11-09 07:10:27,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:27,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:27,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1046 out of 1290 [2024-11-09 07:10:27,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 313 transitions, 1817 flow. Second operand has 3 states, 3 states have (on average 1047.3333333333333) internal successors, (3142), 3 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:27,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:27,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1046 of 1290 [2024-11-09 07:10:27,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:27,574 INFO L124 PetriNetUnfolderBase]: 69/1692 cut-off events. [2024-11-09 07:10:27,574 INFO L125 PetriNetUnfolderBase]: For 7107/7107 co-relation queries the response was YES. [2024-11-09 07:10:27,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1692 events. 69/1692 cut-off events. For 7107/7107 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4796 event pairs, 34 based on Foata normal form. 69/1620 useless extension candidates. Maximal degree in co-relation 2506. Up to 244 conditions per place. [2024-11-09 07:10:27,594 INFO L140 encePairwiseOnDemand]: 1284/1290 looper letters, 43 selfloop transitions, 2 changer transitions 1/309 dead transitions. [2024-11-09 07:10:27,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 309 transitions, 1899 flow [2024-11-09 07:10:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:27,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:27,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3187 transitions. [2024-11-09 07:10:27,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8235142118863049 [2024-11-09 07:10:27,596 INFO L175 Difference]: Start difference. First operand has 378 places, 313 transitions, 1817 flow. Second operand 3 states and 3187 transitions. [2024-11-09 07:10:27,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 309 transitions, 1899 flow [2024-11-09 07:10:27,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 309 transitions, 906 flow, removed 496 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:27,607 INFO L231 Difference]: Finished difference. Result has 378 places, 308 transitions, 818 flow [2024-11-09 07:10:27,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=818, PETRI_PLACES=378, PETRI_TRANSITIONS=308} [2024-11-09 07:10:27,607 INFO L277 CegarLoopForPetriNet]: 378 programPoint places, 0 predicate places. [2024-11-09 07:10:27,608 INFO L471 AbstractCegarLoop]: Abstraction has has 378 places, 308 transitions, 818 flow [2024-11-09 07:10:27,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1047.3333333333333) internal successors, (3142), 3 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:27,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:27,608 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:27,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2024-11-09 07:10:27,608 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:27,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:27,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1464575222, now seen corresponding path program 1 times [2024-11-09 07:10:27,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:27,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307764548] [2024-11-09 07:10:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:27,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:27,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:27,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307764548] [2024-11-09 07:10:27,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307764548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:27,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:27,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:27,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026262558] [2024-11-09 07:10:27,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:27,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:27,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:27,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:27,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:27,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 978 out of 1290 [2024-11-09 07:10:27,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 308 transitions, 818 flow. Second operand has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:27,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:27,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 978 of 1290 [2024-11-09 07:10:27,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:27,992 INFO L124 PetriNetUnfolderBase]: 35/1518 cut-off events. [2024-11-09 07:10:27,992 INFO L125 PetriNetUnfolderBase]: For 626/626 co-relation queries the response was YES. [2024-11-09 07:10:28,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1898 conditions, 1518 events. 35/1518 cut-off events. For 626/626 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3567 event pairs, 0 based on Foata normal form. 34/1483 useless extension candidates. Maximal degree in co-relation 1844. Up to 175 conditions per place. [2024-11-09 07:10:28,007 INFO L140 encePairwiseOnDemand]: 1284/1290 looper letters, 41 selfloop transitions, 1 changer transitions 24/303 dead transitions. [2024-11-09 07:10:28,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 303 transitions, 896 flow [2024-11-09 07:10:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:28,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:28,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2983 transitions. [2024-11-09 07:10:28,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7708010335917312 [2024-11-09 07:10:28,009 INFO L175 Difference]: Start difference. First operand has 378 places, 308 transitions, 818 flow. Second operand 3 states and 2983 transitions. [2024-11-09 07:10:28,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 303 transitions, 896 flow [2024-11-09 07:10:28,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 303 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:28,012 INFO L231 Difference]: Finished difference. Result has 372 places, 279 transitions, 756 flow [2024-11-09 07:10:28,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=372, PETRI_TRANSITIONS=279} [2024-11-09 07:10:28,013 INFO L277 CegarLoopForPetriNet]: 378 programPoint places, -6 predicate places. [2024-11-09 07:10:28,013 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 279 transitions, 756 flow [2024-11-09 07:10:28,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:28,013 INFO L204 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:28,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2024-11-09 07:10:28,013 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:28,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:28,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1629357853, now seen corresponding path program 1 times [2024-11-09 07:10:28,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:28,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988389459] [2024-11-09 07:10:28,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:28,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2024-11-09 07:10:28,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:28,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988389459] [2024-11-09 07:10:28,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988389459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:28,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:28,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383749371] [2024-11-09 07:10:28,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:28,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:28,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:28,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:28,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:28,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1081 out of 1290 [2024-11-09 07:10:28,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 279 transitions, 756 flow. Second operand has 4 states, 4 states have (on average 1090.75) internal successors, (4363), 4 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:28,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1081 of 1290 [2024-11-09 07:10:28,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:28,337 INFO L124 PetriNetUnfolderBase]: 0/701 cut-off events. [2024-11-09 07:10:28,337 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2024-11-09 07:10:28,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 701 events. 0/701 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 395 event pairs, 0 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 0. Up to 36 conditions per place. [2024-11-09 07:10:28,338 INFO L140 encePairwiseOnDemand]: 1286/1290 looper letters, 37 selfloop transitions, 3 changer transitions 0/278 dead transitions. [2024-11-09 07:10:28,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 278 transitions, 834 flow [2024-11-09 07:10:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:28,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:28,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4365 transitions. [2024-11-09 07:10:28,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8459302325581395 [2024-11-09 07:10:28,340 INFO L175 Difference]: Start difference. First operand has 372 places, 279 transitions, 756 flow. Second operand 4 states and 4365 transitions. [2024-11-09 07:10:28,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 278 transitions, 834 flow [2024-11-09 07:10:28,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 278 transitions, 833 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:28,343 INFO L231 Difference]: Finished difference. Result has 349 places, 278 transitions, 759 flow [2024-11-09 07:10:28,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1290, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=759, PETRI_PLACES=349, PETRI_TRANSITIONS=278} [2024-11-09 07:10:28,343 INFO L277 CegarLoopForPetriNet]: 378 programPoint places, -29 predicate places. [2024-11-09 07:10:28,344 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 278 transitions, 759 flow [2024-11-09 07:10:28,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1090.75) internal successors, (4363), 4 states have internal predecessors, (4363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:28,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:28,344 INFO L204 CegarLoopForPetriNet]: trace histogram [34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:28,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2024-11-09 07:10:28,344 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2024-11-09 07:10:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:28,344 INFO L85 PathProgramCache]: Analyzing trace with hash -105382050, now seen corresponding path program 1 times [2024-11-09 07:10:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:28,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410453703] [2024-11-09 07:10:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:28,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:28,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:28,492 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:28,492 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-09 07:10:28,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-09 07:10:28,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-09 07:10:28,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-09 07:10:28,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-09 07:10:28,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-09 07:10:28,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-09 07:10:28,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-09 07:10:28,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-09 07:10:28,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2024-11-09 07:10:28,496 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:28,496 WARN L244 ceAbstractionStarter]: 33 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:28,496 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 34 thread instances. [2024-11-09 07:10:28,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:28,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1326 places, 1327 transitions, 5170 flow [2024-11-09 07:10:29,196 INFO L124 PetriNetUnfolderBase]: 177/2268 cut-off events. [2024-11-09 07:10:29,196 INFO L125 PetriNetUnfolderBase]: For 7106/7106 co-relation queries the response was YES. [2024-11-09 07:10:29,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3036 conditions, 2268 events. 177/2268 cut-off events. For 7106/7106 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6382 event pairs, 0 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 2967. Up to 70 conditions per place. [2024-11-09 07:10:29,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 1326 places, 1327 transitions, 5170 flow [2024-11-09 07:10:29,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 387 places, 320 transitions, 1901 flow [2024-11-09 07:10:29,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:29,215 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:29,215 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-09 07:10:29,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:29,216 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:29,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:29,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:29,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:29,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:29,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:29,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1640555819, now seen corresponding path program 1 times [2024-11-09 07:10:29,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:29,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589909139] [2024-11-09 07:10:29,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:29,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:29,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:29,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589909139] [2024-11-09 07:10:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589909139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:29,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:29,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969747073] [2024-11-09 07:10:29,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:29,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:29,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:29,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1076 out of 1327 [2024-11-09 07:10:29,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 320 transitions, 1901 flow. Second operand has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:29,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:29,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1076 of 1327 [2024-11-09 07:10:29,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:29,665 INFO L124 PetriNetUnfolderBase]: 71/1741 cut-off events. [2024-11-09 07:10:29,666 INFO L125 PetriNetUnfolderBase]: For 7736/7736 co-relation queries the response was YES. [2024-11-09 07:10:29,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2729 conditions, 1741 events. 71/1741 cut-off events. For 7736/7736 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 4898 event pairs, 35 based on Foata normal form. 71/1667 useless extension candidates. Maximal degree in co-relation 2598. Up to 251 conditions per place. [2024-11-09 07:10:29,686 INFO L140 encePairwiseOnDemand]: 1321/1327 looper letters, 44 selfloop transitions, 2 changer transitions 1/316 dead transitions. [2024-11-09 07:10:29,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 316 transitions, 1985 flow [2024-11-09 07:10:29,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:29,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3278 transitions. [2024-11-09 07:10:29,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8234112032152725 [2024-11-09 07:10:29,688 INFO L175 Difference]: Start difference. First operand has 387 places, 320 transitions, 1901 flow. Second operand 3 states and 3278 transitions. [2024-11-09 07:10:29,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 316 transitions, 1985 flow [2024-11-09 07:10:29,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 316 transitions, 928 flow, removed 528 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:29,701 INFO L231 Difference]: Finished difference. Result has 387 places, 315 transitions, 838 flow [2024-11-09 07:10:29,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=387, PETRI_TRANSITIONS=315} [2024-11-09 07:10:29,702 INFO L277 CegarLoopForPetriNet]: 387 programPoint places, 0 predicate places. [2024-11-09 07:10:29,702 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 315 transitions, 838 flow [2024-11-09 07:10:29,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1077.3333333333333) internal successors, (3232), 3 states have internal predecessors, (3232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:29,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:29,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:29,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2024-11-09 07:10:29,703 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:29,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1389900089, now seen corresponding path program 1 times [2024-11-09 07:10:29,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:29,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443527771] [2024-11-09 07:10:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:29,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:29,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443527771] [2024-11-09 07:10:29,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443527771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:29,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:29,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:29,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339561314] [2024-11-09 07:10:29,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:29,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:29,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:29,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:29,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:29,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1006 out of 1327 [2024-11-09 07:10:29,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 315 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:29,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:29,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1006 of 1327 [2024-11-09 07:10:29,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:30,117 INFO L124 PetriNetUnfolderBase]: 36/1562 cut-off events. [2024-11-09 07:10:30,117 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2024-11-09 07:10:30,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 1562 events. 36/1562 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3710 event pairs, 0 based on Foata normal form. 35/1526 useless extension candidates. Maximal degree in co-relation 1898. Up to 180 conditions per place. [2024-11-09 07:10:30,135 INFO L140 encePairwiseOnDemand]: 1321/1327 looper letters, 42 selfloop transitions, 1 changer transitions 24/310 dead transitions. [2024-11-09 07:10:30,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 310 transitions, 918 flow [2024-11-09 07:10:30,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:30,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3068 transitions. [2024-11-09 07:10:30,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7706606380306456 [2024-11-09 07:10:30,137 INFO L175 Difference]: Start difference. First operand has 387 places, 315 transitions, 838 flow. Second operand 3 states and 3068 transitions. [2024-11-09 07:10:30,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 310 transitions, 918 flow [2024-11-09 07:10:30,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 310 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:30,140 INFO L231 Difference]: Finished difference. Result has 381 places, 286 transitions, 776 flow [2024-11-09 07:10:30,140 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=776, PETRI_PLACES=381, PETRI_TRANSITIONS=286} [2024-11-09 07:10:30,141 INFO L277 CegarLoopForPetriNet]: 387 programPoint places, -6 predicate places. [2024-11-09 07:10:30,141 INFO L471 AbstractCegarLoop]: Abstraction has has 381 places, 286 transitions, 776 flow [2024-11-09 07:10:30,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1007.0) internal successors, (3021), 3 states have internal predecessors, (3021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:30,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:30,141 INFO L204 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:30,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2024-11-09 07:10:30,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:30,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:30,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1542542430, now seen corresponding path program 1 times [2024-11-09 07:10:30,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:30,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245387547] [2024-11-09 07:10:30,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:30,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:30,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8126 trivial. 0 not checked. [2024-11-09 07:10:30,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:30,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245387547] [2024-11-09 07:10:30,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245387547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:30,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:30,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:30,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670438618] [2024-11-09 07:10:30,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:30,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:30,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:30,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:30,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:30,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1112 out of 1327 [2024-11-09 07:10:30,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 286 transitions, 776 flow. Second operand has 4 states, 4 states have (on average 1122.0) internal successors, (4488), 4 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:30,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:30,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1112 of 1327 [2024-11-09 07:10:30,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:30,502 INFO L124 PetriNetUnfolderBase]: 0/721 cut-off events. [2024-11-09 07:10:30,502 INFO L125 PetriNetUnfolderBase]: For 661/661 co-relation queries the response was YES. [2024-11-09 07:10:30,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 721 events. 0/721 cut-off events. For 661/661 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 408 event pairs, 0 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 0. Up to 37 conditions per place. [2024-11-09 07:10:30,503 INFO L140 encePairwiseOnDemand]: 1323/1327 looper letters, 38 selfloop transitions, 3 changer transitions 0/285 dead transitions. [2024-11-09 07:10:30,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 285 transitions, 856 flow [2024-11-09 07:10:30,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:30,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4490 transitions. [2024-11-09 07:10:30,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8458929917106255 [2024-11-09 07:10:30,505 INFO L175 Difference]: Start difference. First operand has 381 places, 286 transitions, 776 flow. Second operand 4 states and 4490 transitions. [2024-11-09 07:10:30,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 285 transitions, 856 flow [2024-11-09 07:10:30,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 285 transitions, 855 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:30,508 INFO L231 Difference]: Finished difference. Result has 358 places, 285 transitions, 779 flow [2024-11-09 07:10:30,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1327, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=779, PETRI_PLACES=358, PETRI_TRANSITIONS=285} [2024-11-09 07:10:30,508 INFO L277 CegarLoopForPetriNet]: 387 programPoint places, -29 predicate places. [2024-11-09 07:10:30,509 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 285 transitions, 779 flow [2024-11-09 07:10:30,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1122.0) internal successors, (4488), 4 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:30,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:30,509 INFO L204 CegarLoopForPetriNet]: trace histogram [35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:30,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2024-11-09 07:10:30,509 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 39 more)] === [2024-11-09 07:10:30,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash -339080594, now seen corresponding path program 1 times [2024-11-09 07:10:30,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:30,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657544978] [2024-11-09 07:10:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:30,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:30,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:30,664 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (36 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 42 remaining) [2024-11-09 07:10:30,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 42 remaining) [2024-11-09 07:10:30,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 42 remaining) [2024-11-09 07:10:30,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 42 remaining) [2024-11-09 07:10:30,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2024-11-09 07:10:30,667 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:30,667 WARN L244 ceAbstractionStarter]: 34 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:30,667 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 35 thread instances. [2024-11-09 07:10:30,793 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:30,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1363 places, 1364 transitions, 5388 flow [2024-11-09 07:10:31,421 INFO L124 PetriNetUnfolderBase]: 182/2332 cut-off events. [2024-11-09 07:10:31,421 INFO L125 PetriNetUnfolderBase]: For 7735/7735 co-relation queries the response was YES. [2024-11-09 07:10:31,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 2332 events. 182/2332 cut-off events. For 7735/7735 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6585 event pairs, 0 based on Foata normal form. 0/2038 useless extension candidates. Maximal degree in co-relation 3069. Up to 72 conditions per place. [2024-11-09 07:10:31,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 1363 places, 1364 transitions, 5388 flow [2024-11-09 07:10:31,449 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 396 places, 327 transitions, 1987 flow [2024-11-09 07:10:31,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:31,450 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:31,450 INFO L334 AbstractCegarLoop]: Starting to check reachability of 43 error locations. [2024-11-09 07:10:31,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:31,451 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:31,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:31,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:31,452 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:31,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:31,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:31,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1178103467, now seen corresponding path program 1 times [2024-11-09 07:10:31,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:31,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197044387] [2024-11-09 07:10:31,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:31,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:31,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:31,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197044387] [2024-11-09 07:10:31,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197044387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:31,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:31,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:31,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325908449] [2024-11-09 07:10:31,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:31,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:31,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:31,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:31,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:31,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1106 out of 1364 [2024-11-09 07:10:31,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 327 transitions, 1987 flow. Second operand has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:31,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:31,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1106 of 1364 [2024-11-09 07:10:31,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:32,125 INFO L124 PetriNetUnfolderBase]: 73/1790 cut-off events. [2024-11-09 07:10:32,125 INFO L125 PetriNetUnfolderBase]: For 8401/8401 co-relation queries the response was YES. [2024-11-09 07:10:32,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1790 events. 73/1790 cut-off events. For 8401/8401 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5079 event pairs, 36 based on Foata normal form. 73/1714 useless extension candidates. Maximal degree in co-relation 2691. Up to 258 conditions per place. [2024-11-09 07:10:32,150 INFO L140 encePairwiseOnDemand]: 1358/1364 looper letters, 45 selfloop transitions, 2 changer transitions 1/323 dead transitions. [2024-11-09 07:10:32,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 323 transitions, 2073 flow [2024-11-09 07:10:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:32,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3369 transitions. [2024-11-09 07:10:32,153 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8233137829912024 [2024-11-09 07:10:32,153 INFO L175 Difference]: Start difference. First operand has 396 places, 327 transitions, 1987 flow. Second operand 3 states and 3369 transitions. [2024-11-09 07:10:32,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 323 transitions, 2073 flow [2024-11-09 07:10:32,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 323 transitions, 950 flow, removed 561 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:32,170 INFO L231 Difference]: Finished difference. Result has 396 places, 322 transitions, 858 flow [2024-11-09 07:10:32,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=396, PETRI_TRANSITIONS=322} [2024-11-09 07:10:32,171 INFO L277 CegarLoopForPetriNet]: 396 programPoint places, 0 predicate places. [2024-11-09 07:10:32,171 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 322 transitions, 858 flow [2024-11-09 07:10:32,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1107.3333333333333) internal successors, (3322), 3 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:32,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:32,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:32,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2024-11-09 07:10:32,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:32,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:32,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1566645619, now seen corresponding path program 1 times [2024-11-09 07:10:32,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:32,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398363276] [2024-11-09 07:10:32,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:32,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:32,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:32,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:32,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398363276] [2024-11-09 07:10:32,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398363276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:32,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:32,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579727436] [2024-11-09 07:10:32,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:32,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:32,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:32,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1034 out of 1364 [2024-11-09 07:10:32,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 322 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 1035.0) internal successors, (3105), 3 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:32,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:32,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1034 of 1364 [2024-11-09 07:10:32,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:32,791 INFO L124 PetriNetUnfolderBase]: 37/1606 cut-off events. [2024-11-09 07:10:32,791 INFO L125 PetriNetUnfolderBase]: For 699/699 co-relation queries the response was YES. [2024-11-09 07:10:32,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2008 conditions, 1606 events. 37/1606 cut-off events. For 699/699 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3817 event pairs, 0 based on Foata normal form. 36/1569 useless extension candidates. Maximal degree in co-relation 1952. Up to 185 conditions per place. [2024-11-09 07:10:32,809 INFO L140 encePairwiseOnDemand]: 1358/1364 looper letters, 43 selfloop transitions, 1 changer transitions 24/317 dead transitions. [2024-11-09 07:10:32,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 317 transitions, 940 flow [2024-11-09 07:10:32,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3153 transitions. [2024-11-09 07:10:32,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7705278592375366 [2024-11-09 07:10:32,812 INFO L175 Difference]: Start difference. First operand has 396 places, 322 transitions, 858 flow. Second operand 3 states and 3153 transitions. [2024-11-09 07:10:32,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 317 transitions, 940 flow [2024-11-09 07:10:32,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 317 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:32,817 INFO L231 Difference]: Finished difference. Result has 390 places, 293 transitions, 796 flow [2024-11-09 07:10:32,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=796, PETRI_PLACES=390, PETRI_TRANSITIONS=293} [2024-11-09 07:10:32,817 INFO L277 CegarLoopForPetriNet]: 396 programPoint places, -6 predicate places. [2024-11-09 07:10:32,818 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 293 transitions, 796 flow [2024-11-09 07:10:32,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1035.0) internal successors, (3105), 3 states have internal predecessors, (3105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:32,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:32,818 INFO L204 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:32,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2024-11-09 07:10:32,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:32,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:32,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1101643290, now seen corresponding path program 1 times [2024-11-09 07:10:32,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:32,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94409725] [2024-11-09 07:10:32,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:32,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:32,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8610 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8610 trivial. 0 not checked. [2024-11-09 07:10:32,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:32,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94409725] [2024-11-09 07:10:32,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94409725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:32,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:32,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:32,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107124801] [2024-11-09 07:10:32,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:32,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:32,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:32,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:33,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1143 out of 1364 [2024-11-09 07:10:33,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 293 transitions, 796 flow. Second operand has 4 states, 4 states have (on average 1153.25) internal successors, (4613), 4 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:33,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:33,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1143 of 1364 [2024-11-09 07:10:33,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:33,232 INFO L124 PetriNetUnfolderBase]: 0/741 cut-off events. [2024-11-09 07:10:33,233 INFO L125 PetriNetUnfolderBase]: For 698/698 co-relation queries the response was YES. [2024-11-09 07:10:33,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 741 events. 0/741 cut-off events. For 698/698 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 419 event pairs, 0 based on Foata normal form. 0/741 useless extension candidates. Maximal degree in co-relation 0. Up to 38 conditions per place. [2024-11-09 07:10:33,233 INFO L140 encePairwiseOnDemand]: 1360/1364 looper letters, 39 selfloop transitions, 3 changer transitions 0/292 dead transitions. [2024-11-09 07:10:33,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 292 transitions, 878 flow [2024-11-09 07:10:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4615 transitions. [2024-11-09 07:10:33,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.845857771260997 [2024-11-09 07:10:33,235 INFO L175 Difference]: Start difference. First operand has 390 places, 293 transitions, 796 flow. Second operand 4 states and 4615 transitions. [2024-11-09 07:10:33,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 292 transitions, 878 flow [2024-11-09 07:10:33,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 292 transitions, 877 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:33,238 INFO L231 Difference]: Finished difference. Result has 367 places, 292 transitions, 799 flow [2024-11-09 07:10:33,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1364, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=799, PETRI_PLACES=367, PETRI_TRANSITIONS=292} [2024-11-09 07:10:33,239 INFO L277 CegarLoopForPetriNet]: 396 programPoint places, -29 predicate places. [2024-11-09 07:10:33,239 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 292 transitions, 799 flow [2024-11-09 07:10:33,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1153.25) internal successors, (4613), 4 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:33,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:33,239 INFO L204 CegarLoopForPetriNet]: trace histogram [36, 36, 36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:33,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2024-11-09 07:10:33,240 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2024-11-09 07:10:33,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2039914186, now seen corresponding path program 1 times [2024-11-09 07:10:33,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:33,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878565881] [2024-11-09 07:10:33,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:33,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:33,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:33,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:33,416 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:33,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 43 remaining) [2024-11-09 07:10:33,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 43 remaining) [2024-11-09 07:10:33,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 43 remaining) [2024-11-09 07:10:33,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 43 remaining) [2024-11-09 07:10:33,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 43 remaining) [2024-11-09 07:10:33,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 43 remaining) [2024-11-09 07:10:33,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 43 remaining) [2024-11-09 07:10:33,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 43 remaining) [2024-11-09 07:10:33,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2024-11-09 07:10:33,419 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:33,419 WARN L244 ceAbstractionStarter]: 35 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:33,419 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 36 thread instances. [2024-11-09 07:10:33,550 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:33,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1400 places, 1401 transitions, 5610 flow [2024-11-09 07:10:33,974 INFO L124 PetriNetUnfolderBase]: 187/2396 cut-off events. [2024-11-09 07:10:33,974 INFO L125 PetriNetUnfolderBase]: For 8400/8400 co-relation queries the response was YES. [2024-11-09 07:10:34,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3245 conditions, 2396 events. 187/2396 cut-off events. For 8400/8400 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6737 event pairs, 0 based on Foata normal form. 0/2094 useless extension candidates. Maximal degree in co-relation 3172. Up to 74 conditions per place. [2024-11-09 07:10:34,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 1400 places, 1401 transitions, 5610 flow [2024-11-09 07:10:34,011 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 405 places, 334 transitions, 2075 flow [2024-11-09 07:10:34,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:34,012 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:34,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-09 07:10:34,013 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:34,013 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:34,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:34,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:34,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:34,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:34,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:34,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1863167861, now seen corresponding path program 1 times [2024-11-09 07:10:34,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:34,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592168105] [2024-11-09 07:10:34,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:34,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:34,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:34,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592168105] [2024-11-09 07:10:34,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592168105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:34,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:34,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:34,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204139271] [2024-11-09 07:10:34,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:34,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:34,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:34,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:34,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1136 out of 1401 [2024-11-09 07:10:34,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 334 transitions, 2075 flow. Second operand has 3 states, 3 states have (on average 1137.3333333333333) internal successors, (3412), 3 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:34,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:34,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1136 of 1401 [2024-11-09 07:10:34,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:34,561 INFO L124 PetriNetUnfolderBase]: 75/1839 cut-off events. [2024-11-09 07:10:34,562 INFO L125 PetriNetUnfolderBase]: For 9103/9103 co-relation queries the response was YES. [2024-11-09 07:10:34,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2920 conditions, 1839 events. 75/1839 cut-off events. For 9103/9103 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5091 event pairs, 37 based on Foata normal form. 38/1724 useless extension candidates. Maximal degree in co-relation 2785. Up to 265 conditions per place. [2024-11-09 07:10:34,586 INFO L140 encePairwiseOnDemand]: 1395/1401 looper letters, 46 selfloop transitions, 2 changer transitions 1/330 dead transitions. [2024-11-09 07:10:34,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 330 transitions, 2163 flow [2024-11-09 07:10:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:34,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3460 transitions. [2024-11-09 07:10:34,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8232215084463479 [2024-11-09 07:10:34,588 INFO L175 Difference]: Start difference. First operand has 405 places, 334 transitions, 2075 flow. Second operand 3 states and 3460 transitions. [2024-11-09 07:10:34,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 330 transitions, 2163 flow [2024-11-09 07:10:34,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 330 transitions, 972 flow, removed 595 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:34,602 INFO L231 Difference]: Finished difference. Result has 405 places, 329 transitions, 878 flow [2024-11-09 07:10:34,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=405, PETRI_TRANSITIONS=329} [2024-11-09 07:10:34,602 INFO L277 CegarLoopForPetriNet]: 405 programPoint places, 0 predicate places. [2024-11-09 07:10:34,602 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 329 transitions, 878 flow [2024-11-09 07:10:34,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1137.3333333333333) internal successors, (3412), 3 states have internal predecessors, (3412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:34,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:34,603 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:34,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2024-11-09 07:10:34,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:34,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1744277754, now seen corresponding path program 1 times [2024-11-09 07:10:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:34,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443998835] [2024-11-09 07:10:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:34,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:34,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:34,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443998835] [2024-11-09 07:10:34,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443998835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:34,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:34,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:34,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420023023] [2024-11-09 07:10:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:34,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:34,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:34,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:34,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1062 out of 1401 [2024-11-09 07:10:34,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 329 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:34,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:34,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1062 of 1401 [2024-11-09 07:10:34,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:35,117 INFO L124 PetriNetUnfolderBase]: 38/1650 cut-off events. [2024-11-09 07:10:35,118 INFO L125 PetriNetUnfolderBase]: For 737/737 co-relation queries the response was YES. [2024-11-09 07:10:35,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 1650 events. 38/1650 cut-off events. For 737/737 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3780 event pairs, 0 based on Foata normal form. 37/1612 useless extension candidates. Maximal degree in co-relation 2006. Up to 190 conditions per place. [2024-11-09 07:10:35,137 INFO L140 encePairwiseOnDemand]: 1395/1401 looper letters, 44 selfloop transitions, 1 changer transitions 24/324 dead transitions. [2024-11-09 07:10:35,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 324 transitions, 962 flow [2024-11-09 07:10:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3238 transitions. [2024-11-09 07:10:35,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7704020937425649 [2024-11-09 07:10:35,139 INFO L175 Difference]: Start difference. First operand has 405 places, 329 transitions, 878 flow. Second operand 3 states and 3238 transitions. [2024-11-09 07:10:35,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 324 transitions, 962 flow [2024-11-09 07:10:35,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 324 transitions, 958 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:35,143 INFO L231 Difference]: Finished difference. Result has 399 places, 300 transitions, 816 flow [2024-11-09 07:10:35,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=399, PETRI_TRANSITIONS=300} [2024-11-09 07:10:35,143 INFO L277 CegarLoopForPetriNet]: 405 programPoint places, -6 predicate places. [2024-11-09 07:10:35,143 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 300 transitions, 816 flow [2024-11-09 07:10:35,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:35,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:35,144 INFO L204 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:35,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2024-11-09 07:10:35,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:35,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1484222293, now seen corresponding path program 1 times [2024-11-09 07:10:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:35,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497153618] [2024-11-09 07:10:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:35,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:35,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9108 trivial. 0 not checked. [2024-11-09 07:10:35,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:35,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497153618] [2024-11-09 07:10:35,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497153618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:35,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:35,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:35,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188086784] [2024-11-09 07:10:35,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:35,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:35,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:35,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:35,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:35,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 1401 [2024-11-09 07:10:35,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 300 transitions, 816 flow. Second operand has 4 states, 4 states have (on average 1184.5) internal successors, (4738), 4 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:35,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:35,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 1401 [2024-11-09 07:10:35,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:35,556 INFO L124 PetriNetUnfolderBase]: 0/761 cut-off events. [2024-11-09 07:10:35,556 INFO L125 PetriNetUnfolderBase]: For 736/736 co-relation queries the response was YES. [2024-11-09 07:10:35,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 761 events. 0/761 cut-off events. For 736/736 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 432 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 0. Up to 39 conditions per place. [2024-11-09 07:10:35,557 INFO L140 encePairwiseOnDemand]: 1397/1401 looper letters, 40 selfloop transitions, 3 changer transitions 0/299 dead transitions. [2024-11-09 07:10:35,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 299 transitions, 900 flow [2024-11-09 07:10:35,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:35,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4740 transitions. [2024-11-09 07:10:35,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8458244111349036 [2024-11-09 07:10:35,560 INFO L175 Difference]: Start difference. First operand has 399 places, 300 transitions, 816 flow. Second operand 4 states and 4740 transitions. [2024-11-09 07:10:35,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 299 transitions, 900 flow [2024-11-09 07:10:35,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 299 transitions, 899 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:35,563 INFO L231 Difference]: Finished difference. Result has 376 places, 299 transitions, 819 flow [2024-11-09 07:10:35,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1401, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=819, PETRI_PLACES=376, PETRI_TRANSITIONS=299} [2024-11-09 07:10:35,563 INFO L277 CegarLoopForPetriNet]: 405 programPoint places, -29 predicate places. [2024-11-09 07:10:35,563 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 299 transitions, 819 flow [2024-11-09 07:10:35,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1184.5) internal successors, (4738), 4 states have internal predecessors, (4738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:35,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:35,564 INFO L204 CegarLoopForPetriNet]: trace histogram [37, 37, 37, 37, 37, 37, 37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:35,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2024-11-09 07:10:35,564 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2024-11-09 07:10:35,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash -915896878, now seen corresponding path program 1 times [2024-11-09 07:10:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:35,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864121571] [2024-11-09 07:10:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:35,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:35,846 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:35,846 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:35,846 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2024-11-09 07:10:35,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2024-11-09 07:10:35,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2024-11-09 07:10:35,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2024-11-09 07:10:35,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2024-11-09 07:10:35,849 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:35,849 WARN L244 ceAbstractionStarter]: 36 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:35,850 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 37 thread instances. [2024-11-09 07:10:35,971 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:35,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1437 places, 1438 transitions, 5836 flow [2024-11-09 07:10:36,421 INFO L124 PetriNetUnfolderBase]: 192/2460 cut-off events. [2024-11-09 07:10:36,421 INFO L125 PetriNetUnfolderBase]: For 9102/9102 co-relation queries the response was YES. [2024-11-09 07:10:36,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3351 conditions, 2460 events. 192/2460 cut-off events. For 9102/9102 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6964 event pairs, 0 based on Foata normal form. 0/2150 useless extension candidates. Maximal degree in co-relation 3276. Up to 76 conditions per place. [2024-11-09 07:10:36,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 1437 places, 1438 transitions, 5836 flow [2024-11-09 07:10:36,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 414 places, 341 transitions, 2165 flow [2024-11-09 07:10:36,460 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:36,460 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:36,460 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2024-11-09 07:10:36,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:36,461 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:36,461 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:36,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:36,462 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:36,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:36,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1106676427, now seen corresponding path program 1 times [2024-11-09 07:10:36,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:36,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919989574] [2024-11-09 07:10:36,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:36,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:36,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:36,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919989574] [2024-11-09 07:10:36,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919989574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:36,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:36,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:36,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039394712] [2024-11-09 07:10:36,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:36,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:36,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1166 out of 1438 [2024-11-09 07:10:36,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 341 transitions, 2165 flow. Second operand has 3 states, 3 states have (on average 1167.3333333333333) internal successors, (3502), 3 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:36,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:36,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1166 of 1438 [2024-11-09 07:10:36,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:36,996 INFO L124 PetriNetUnfolderBase]: 77/1888 cut-off events. [2024-11-09 07:10:36,996 INFO L125 PetriNetUnfolderBase]: For 9843/9843 co-relation queries the response was YES. [2024-11-09 07:10:37,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3017 conditions, 1888 events. 77/1888 cut-off events. For 9843/9843 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5239 event pairs, 38 based on Foata normal form. 39/1770 useless extension candidates. Maximal degree in co-relation 2880. Up to 272 conditions per place. [2024-11-09 07:10:37,022 INFO L140 encePairwiseOnDemand]: 1432/1438 looper letters, 47 selfloop transitions, 2 changer transitions 1/337 dead transitions. [2024-11-09 07:10:37,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 337 transitions, 2255 flow [2024-11-09 07:10:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3551 transitions. [2024-11-09 07:10:37,024 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231339823829392 [2024-11-09 07:10:37,024 INFO L175 Difference]: Start difference. First operand has 414 places, 341 transitions, 2165 flow. Second operand 3 states and 3551 transitions. [2024-11-09 07:10:37,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 337 transitions, 2255 flow [2024-11-09 07:10:37,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 337 transitions, 994 flow, removed 630 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:37,039 INFO L231 Difference]: Finished difference. Result has 414 places, 336 transitions, 898 flow [2024-11-09 07:10:37,039 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=896, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=898, PETRI_PLACES=414, PETRI_TRANSITIONS=336} [2024-11-09 07:10:37,039 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, 0 predicate places. [2024-11-09 07:10:37,039 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 336 transitions, 898 flow [2024-11-09 07:10:37,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1167.3333333333333) internal successors, (3502), 3 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:37,040 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:37,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2024-11-09 07:10:37,040 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:37,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:37,040 INFO L85 PathProgramCache]: Analyzing trace with hash 857003684, now seen corresponding path program 1 times [2024-11-09 07:10:37,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527225256] [2024-11-09 07:10:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:37,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527225256] [2024-11-09 07:10:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527225256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:37,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:37,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:37,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736640581] [2024-11-09 07:10:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:37,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:37,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:37,156 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1090 out of 1438 [2024-11-09 07:10:37,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 336 transitions, 898 flow. Second operand has 3 states, 3 states have (on average 1091.0) internal successors, (3273), 3 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:37,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1090 of 1438 [2024-11-09 07:10:37,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:37,506 INFO L124 PetriNetUnfolderBase]: 39/1694 cut-off events. [2024-11-09 07:10:37,506 INFO L125 PetriNetUnfolderBase]: For 776/776 co-relation queries the response was YES. [2024-11-09 07:10:37,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 1694 events. 39/1694 cut-off events. For 776/776 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 3930 event pairs, 0 based on Foata normal form. 38/1655 useless extension candidates. Maximal degree in co-relation 2060. Up to 195 conditions per place. [2024-11-09 07:10:37,526 INFO L140 encePairwiseOnDemand]: 1432/1438 looper letters, 45 selfloop transitions, 1 changer transitions 24/331 dead transitions. [2024-11-09 07:10:37,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 331 transitions, 984 flow [2024-11-09 07:10:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3323 transitions. [2024-11-09 07:10:37,528 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7702828001854427 [2024-11-09 07:10:37,528 INFO L175 Difference]: Start difference. First operand has 414 places, 336 transitions, 898 flow. Second operand 3 states and 3323 transitions. [2024-11-09 07:10:37,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 331 transitions, 984 flow [2024-11-09 07:10:37,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 331 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:37,532 INFO L231 Difference]: Finished difference. Result has 408 places, 307 transitions, 836 flow [2024-11-09 07:10:37,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=408, PETRI_TRANSITIONS=307} [2024-11-09 07:10:37,532 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, -6 predicate places. [2024-11-09 07:10:37,532 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 307 transitions, 836 flow [2024-11-09 07:10:37,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1091.0) internal successors, (3273), 3 states have internal predecessors, (3273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:37,532 INFO L204 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:37,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2024-11-09 07:10:37,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:37,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:37,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1550033845, now seen corresponding path program 1 times [2024-11-09 07:10:37,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:37,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839379376] [2024-11-09 07:10:37,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:37,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9620 trivial. 0 not checked. [2024-11-09 07:10:37,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:37,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839379376] [2024-11-09 07:10:37,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839379376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:37,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:37,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:37,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88637426] [2024-11-09 07:10:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:37,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:37,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 1438 [2024-11-09 07:10:37,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 307 transitions, 836 flow. Second operand has 4 states, 4 states have (on average 1215.75) internal successors, (4863), 4 states have internal predecessors, (4863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:37,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 1438 [2024-11-09 07:10:37,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:37,923 INFO L124 PetriNetUnfolderBase]: 0/781 cut-off events. [2024-11-09 07:10:37,923 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2024-11-09 07:10:37,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 781 events. 0/781 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 444 event pairs, 0 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 0. Up to 40 conditions per place. [2024-11-09 07:10:37,923 INFO L140 encePairwiseOnDemand]: 1434/1438 looper letters, 41 selfloop transitions, 3 changer transitions 0/306 dead transitions. [2024-11-09 07:10:37,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 306 transitions, 922 flow [2024-11-09 07:10:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:37,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4865 transitions. [2024-11-09 07:10:37,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8457927677329624 [2024-11-09 07:10:37,926 INFO L175 Difference]: Start difference. First operand has 408 places, 307 transitions, 836 flow. Second operand 4 states and 4865 transitions. [2024-11-09 07:10:37,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 306 transitions, 922 flow [2024-11-09 07:10:37,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 306 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:37,929 INFO L231 Difference]: Finished difference. Result has 385 places, 306 transitions, 839 flow [2024-11-09 07:10:37,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1438, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=839, PETRI_PLACES=385, PETRI_TRANSITIONS=306} [2024-11-09 07:10:37,929 INFO L277 CegarLoopForPetriNet]: 414 programPoint places, -29 predicate places. [2024-11-09 07:10:37,929 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 306 transitions, 839 flow [2024-11-09 07:10:37,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1215.75) internal successors, (4863), 4 states have internal predecessors, (4863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:37,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:37,930 INFO L204 CegarLoopForPetriNet]: trace histogram [38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:37,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2024-11-09 07:10:37,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-09 07:10:37,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:37,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1072215834, now seen corresponding path program 1 times [2024-11-09 07:10:37,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:37,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769656160] [2024-11-09 07:10:37,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:37,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:37,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:38,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:38,123 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:38,123 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2024-11-09 07:10:38,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2024-11-09 07:10:38,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2024-11-09 07:10:38,124 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2024-11-09 07:10:38,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2024-11-09 07:10:38,126 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2024-11-09 07:10:38,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2024-11-09 07:10:38,126 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:38,126 WARN L244 ceAbstractionStarter]: 37 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:38,126 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 38 thread instances. [2024-11-09 07:10:38,245 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:38,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1474 places, 1475 transitions, 6066 flow [2024-11-09 07:10:38,822 INFO L124 PetriNetUnfolderBase]: 197/2524 cut-off events. [2024-11-09 07:10:38,822 INFO L125 PetriNetUnfolderBase]: For 9842/9842 co-relation queries the response was YES. [2024-11-09 07:10:38,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3458 conditions, 2524 events. 197/2524 cut-off events. For 9842/9842 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6960 event pairs, 0 based on Foata normal form. 0/2206 useless extension candidates. Maximal degree in co-relation 3381. Up to 78 conditions per place. [2024-11-09 07:10:38,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 1474 places, 1475 transitions, 6066 flow [2024-11-09 07:10:38,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 423 places, 348 transitions, 2257 flow [2024-11-09 07:10:38,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:38,864 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:38,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-09 07:10:38,865 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:38,865 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:38,865 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:38,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:38,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:38,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:38,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:38,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1497701739, now seen corresponding path program 1 times [2024-11-09 07:10:38,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:38,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713458383] [2024-11-09 07:10:38,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:38,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:38,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:38,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713458383] [2024-11-09 07:10:38,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713458383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:38,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:38,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:38,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112334378] [2024-11-09 07:10:38,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:38,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:38,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:38,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:38,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:39,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1196 out of 1475 [2024-11-09 07:10:39,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 348 transitions, 2257 flow. Second operand has 3 states, 3 states have (on average 1197.3333333333333) internal successors, (3592), 3 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:39,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:39,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1196 of 1475 [2024-11-09 07:10:39,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:39,430 INFO L124 PetriNetUnfolderBase]: 79/1937 cut-off events. [2024-11-09 07:10:39,430 INFO L125 PetriNetUnfolderBase]: For 10622/10622 co-relation queries the response was YES. [2024-11-09 07:10:39,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 1937 events. 79/1937 cut-off events. For 10622/10622 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5442 event pairs, 39 based on Foata normal form. 79/1855 useless extension candidates. Maximal degree in co-relation 2976. Up to 279 conditions per place. [2024-11-09 07:10:39,457 INFO L140 encePairwiseOnDemand]: 1469/1475 looper letters, 48 selfloop transitions, 2 changer transitions 1/344 dead transitions. [2024-11-09 07:10:39,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 344 transitions, 2349 flow [2024-11-09 07:10:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3642 transitions. [2024-11-09 07:10:39,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8230508474576271 [2024-11-09 07:10:39,459 INFO L175 Difference]: Start difference. First operand has 423 places, 348 transitions, 2257 flow. Second operand 3 states and 3642 transitions. [2024-11-09 07:10:39,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 344 transitions, 2349 flow [2024-11-09 07:10:39,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 344 transitions, 1016 flow, removed 666 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:39,474 INFO L231 Difference]: Finished difference. Result has 423 places, 343 transitions, 918 flow [2024-11-09 07:10:39,474 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=423, PETRI_TRANSITIONS=343} [2024-11-09 07:10:39,475 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, 0 predicate places. [2024-11-09 07:10:39,475 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 343 transitions, 918 flow [2024-11-09 07:10:39,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1197.3333333333333) internal successors, (3592), 3 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:39,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:39,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:39,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2024-11-09 07:10:39,476 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:39,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1942231399, now seen corresponding path program 1 times [2024-11-09 07:10:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:39,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624848002] [2024-11-09 07:10:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:39,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:39,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:39,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624848002] [2024-11-09 07:10:39,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624848002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:39,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:39,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:39,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601839098] [2024-11-09 07:10:39,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:39,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:39,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:39,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:39,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:39,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1118 out of 1475 [2024-11-09 07:10:39,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 343 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:39,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:39,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1118 of 1475 [2024-11-09 07:10:39,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:40,103 INFO L124 PetriNetUnfolderBase]: 40/1738 cut-off events. [2024-11-09 07:10:40,103 INFO L125 PetriNetUnfolderBase]: For 816/816 co-relation queries the response was YES. [2024-11-09 07:10:40,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1738 events. 40/1738 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4141 event pairs, 0 based on Foata normal form. 39/1698 useless extension candidates. Maximal degree in co-relation 2114. Up to 200 conditions per place. [2024-11-09 07:10:40,115 INFO L140 encePairwiseOnDemand]: 1469/1475 looper letters, 46 selfloop transitions, 1 changer transitions 24/338 dead transitions. [2024-11-09 07:10:40,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 338 transitions, 1006 flow [2024-11-09 07:10:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:40,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3408 transitions. [2024-11-09 07:10:40,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7701694915254237 [2024-11-09 07:10:40,116 INFO L175 Difference]: Start difference. First operand has 423 places, 343 transitions, 918 flow. Second operand 3 states and 3408 transitions. [2024-11-09 07:10:40,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 338 transitions, 1006 flow [2024-11-09 07:10:40,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 338 transitions, 1002 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:40,119 INFO L231 Difference]: Finished difference. Result has 417 places, 314 transitions, 856 flow [2024-11-09 07:10:40,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=417, PETRI_TRANSITIONS=314} [2024-11-09 07:10:40,120 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, -6 predicate places. [2024-11-09 07:10:40,120 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 314 transitions, 856 flow [2024-11-09 07:10:40,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1119.0) internal successors, (3357), 3 states have internal predecessors, (3357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:40,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:40,120 INFO L204 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:40,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2024-11-09 07:10:40,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:40,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:40,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1805293464, now seen corresponding path program 1 times [2024-11-09 07:10:40,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:40,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430536233] [2024-11-09 07:10:40,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:40,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 10146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10146 trivial. 0 not checked. [2024-11-09 07:10:40,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:40,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430536233] [2024-11-09 07:10:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430536233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:40,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:40,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:40,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239712036] [2024-11-09 07:10:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:40,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:40,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:40,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:40,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:40,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1236 out of 1475 [2024-11-09 07:10:40,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 314 transitions, 856 flow. Second operand has 4 states, 4 states have (on average 1247.0) internal successors, (4988), 4 states have internal predecessors, (4988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:40,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:40,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1236 of 1475 [2024-11-09 07:10:40,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:40,612 INFO L124 PetriNetUnfolderBase]: 0/801 cut-off events. [2024-11-09 07:10:40,612 INFO L125 PetriNetUnfolderBase]: For 815/815 co-relation queries the response was YES. [2024-11-09 07:10:40,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 801 events. 0/801 cut-off events. For 815/815 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 455 event pairs, 0 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 0. Up to 41 conditions per place. [2024-11-09 07:10:40,613 INFO L140 encePairwiseOnDemand]: 1471/1475 looper letters, 42 selfloop transitions, 3 changer transitions 0/313 dead transitions. [2024-11-09 07:10:40,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 313 transitions, 944 flow [2024-11-09 07:10:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:40,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4990 transitions. [2024-11-09 07:10:40,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8457627118644068 [2024-11-09 07:10:40,616 INFO L175 Difference]: Start difference. First operand has 417 places, 314 transitions, 856 flow. Second operand 4 states and 4990 transitions. [2024-11-09 07:10:40,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 313 transitions, 944 flow [2024-11-09 07:10:40,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 313 transitions, 943 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:40,621 INFO L231 Difference]: Finished difference. Result has 394 places, 313 transitions, 859 flow [2024-11-09 07:10:40,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1475, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=859, PETRI_PLACES=394, PETRI_TRANSITIONS=313} [2024-11-09 07:10:40,621 INFO L277 CegarLoopForPetriNet]: 423 programPoint places, -29 predicate places. [2024-11-09 07:10:40,621 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 313 transitions, 859 flow [2024-11-09 07:10:40,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1247.0) internal successors, (4988), 4 states have internal predecessors, (4988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:40,622 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:40,622 INFO L204 CegarLoopForPetriNet]: trace histogram [39, 39, 39, 39, 39, 39, 39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:40,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2024-11-09 07:10:40,622 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2024-11-09 07:10:40,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:40,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1925919078, now seen corresponding path program 1 times [2024-11-09 07:10:40,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:40,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278702622] [2024-11-09 07:10:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:40,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:40,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:40,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:40,874 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-09 07:10:40,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-09 07:10:40,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-09 07:10:40,876 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-09 07:10:40,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-09 07:10:40,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-09 07:10:40,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-09 07:10:40,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2024-11-09 07:10:40,877 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:40,877 WARN L244 ceAbstractionStarter]: 38 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:40,877 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 39 thread instances. [2024-11-09 07:10:41,001 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:41,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1511 places, 1512 transitions, 6300 flow [2024-11-09 07:10:41,605 INFO L124 PetriNetUnfolderBase]: 202/2588 cut-off events. [2024-11-09 07:10:41,605 INFO L125 PetriNetUnfolderBase]: For 10621/10621 co-relation queries the response was YES. [2024-11-09 07:10:41,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 2588 events. 202/2588 cut-off events. For 10621/10621 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7180 event pairs, 0 based on Foata normal form. 0/2262 useless extension candidates. Maximal degree in co-relation 3487. Up to 80 conditions per place. [2024-11-09 07:10:41,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 1511 places, 1512 transitions, 6300 flow [2024-11-09 07:10:41,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 355 transitions, 2351 flow [2024-11-09 07:10:41,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:41,648 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:41,648 INFO L334 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2024-11-09 07:10:41,649 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:41,649 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:41,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:41,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:41,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:41,650 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:41,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:41,650 INFO L85 PathProgramCache]: Analyzing trace with hash -690091925, now seen corresponding path program 1 times [2024-11-09 07:10:41,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:41,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022240938] [2024-11-09 07:10:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:41,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:41,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:41,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022240938] [2024-11-09 07:10:41,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022240938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:41,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:41,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:41,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928715863] [2024-11-09 07:10:41,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:41,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:41,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:41,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:41,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:41,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1226 out of 1512 [2024-11-09 07:10:41,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 355 transitions, 2351 flow. Second operand has 3 states, 3 states have (on average 1227.3333333333333) internal successors, (3682), 3 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:41,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:41,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1226 of 1512 [2024-11-09 07:10:41,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:42,232 INFO L124 PetriNetUnfolderBase]: 81/1986 cut-off events. [2024-11-09 07:10:42,232 INFO L125 PetriNetUnfolderBase]: For 11441/11441 co-relation queries the response was YES. [2024-11-09 07:10:42,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3214 conditions, 1986 events. 81/1986 cut-off events. For 11441/11441 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5513 event pairs, 40 based on Foata normal form. 41/1862 useless extension candidates. Maximal degree in co-relation 3073. Up to 286 conditions per place. [2024-11-09 07:10:42,261 INFO L140 encePairwiseOnDemand]: 1506/1512 looper letters, 49 selfloop transitions, 2 changer transitions 1/351 dead transitions. [2024-11-09 07:10:42,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 351 transitions, 2445 flow [2024-11-09 07:10:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:42,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:42,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3733 transitions. [2024-11-09 07:10:42,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8229717813051146 [2024-11-09 07:10:42,263 INFO L175 Difference]: Start difference. First operand has 432 places, 355 transitions, 2351 flow. Second operand 3 states and 3733 transitions. [2024-11-09 07:10:42,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 351 transitions, 2445 flow [2024-11-09 07:10:42,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 351 transitions, 1038 flow, removed 703 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:42,279 INFO L231 Difference]: Finished difference. Result has 432 places, 350 transitions, 938 flow [2024-11-09 07:10:42,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=432, PETRI_TRANSITIONS=350} [2024-11-09 07:10:42,279 INFO L277 CegarLoopForPetriNet]: 432 programPoint places, 0 predicate places. [2024-11-09 07:10:42,280 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 350 transitions, 938 flow [2024-11-09 07:10:42,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1227.3333333333333) internal successors, (3682), 3 states have internal predecessors, (3682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:42,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:42,280 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:42,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2024-11-09 07:10:42,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:42,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:42,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1511405391, now seen corresponding path program 1 times [2024-11-09 07:10:42,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:42,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221205819] [2024-11-09 07:10:42,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:42,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:42,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:42,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221205819] [2024-11-09 07:10:42,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221205819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:42,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:42,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:42,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057683293] [2024-11-09 07:10:42,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:42,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:42,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:42,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:42,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:42,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1146 out of 1512 [2024-11-09 07:10:42,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 350 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 1147.0) internal successors, (3441), 3 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:42,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:42,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1146 of 1512 [2024-11-09 07:10:42,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:42,784 INFO L124 PetriNetUnfolderBase]: 41/1782 cut-off events. [2024-11-09 07:10:42,785 INFO L125 PetriNetUnfolderBase]: For 857/857 co-relation queries the response was YES. [2024-11-09 07:10:42,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2228 conditions, 1782 events. 41/1782 cut-off events. For 857/857 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4146 event pairs, 0 based on Foata normal form. 40/1741 useless extension candidates. Maximal degree in co-relation 2168. Up to 205 conditions per place. [2024-11-09 07:10:42,807 INFO L140 encePairwiseOnDemand]: 1506/1512 looper letters, 47 selfloop transitions, 1 changer transitions 24/345 dead transitions. [2024-11-09 07:10:42,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 345 transitions, 1028 flow [2024-11-09 07:10:42,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:42,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:42,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3493 transitions. [2024-11-09 07:10:42,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7700617283950617 [2024-11-09 07:10:42,809 INFO L175 Difference]: Start difference. First operand has 432 places, 350 transitions, 938 flow. Second operand 3 states and 3493 transitions. [2024-11-09 07:10:42,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 345 transitions, 1028 flow [2024-11-09 07:10:42,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 345 transitions, 1024 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:42,813 INFO L231 Difference]: Finished difference. Result has 426 places, 321 transitions, 876 flow [2024-11-09 07:10:42,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=426, PETRI_TRANSITIONS=321} [2024-11-09 07:10:42,813 INFO L277 CegarLoopForPetriNet]: 432 programPoint places, -6 predicate places. [2024-11-09 07:10:42,814 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 321 transitions, 876 flow [2024-11-09 07:10:42,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1147.0) internal successors, (3441), 3 states have internal predecessors, (3441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:42,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:42,814 INFO L204 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:42,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2024-11-09 07:10:42,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:42,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2105027764, now seen corresponding path program 1 times [2024-11-09 07:10:42,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:42,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732895741] [2024-11-09 07:10:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:42,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:42,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10686 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10686 trivial. 0 not checked. [2024-11-09 07:10:42,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:42,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732895741] [2024-11-09 07:10:42,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732895741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:42,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:42,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:42,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299140508] [2024-11-09 07:10:42,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:42,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:42,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:42,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:42,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:43,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1267 out of 1512 [2024-11-09 07:10:43,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 321 transitions, 876 flow. Second operand has 4 states, 4 states have (on average 1278.25) internal successors, (5113), 4 states have internal predecessors, (5113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:43,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:43,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1267 of 1512 [2024-11-09 07:10:43,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:43,298 INFO L124 PetriNetUnfolderBase]: 0/821 cut-off events. [2024-11-09 07:10:43,299 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-09 07:10:43,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 821 events. 0/821 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 468 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 0. Up to 42 conditions per place. [2024-11-09 07:10:43,299 INFO L140 encePairwiseOnDemand]: 1508/1512 looper letters, 43 selfloop transitions, 3 changer transitions 0/320 dead transitions. [2024-11-09 07:10:43,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 320 transitions, 966 flow [2024-11-09 07:10:43,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:43,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:43,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5115 transitions. [2024-11-09 07:10:43,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.845734126984127 [2024-11-09 07:10:43,302 INFO L175 Difference]: Start difference. First operand has 426 places, 321 transitions, 876 flow. Second operand 4 states and 5115 transitions. [2024-11-09 07:10:43,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 320 transitions, 966 flow [2024-11-09 07:10:43,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 320 transitions, 965 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:43,305 INFO L231 Difference]: Finished difference. Result has 403 places, 320 transitions, 879 flow [2024-11-09 07:10:43,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1512, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=879, PETRI_PLACES=403, PETRI_TRANSITIONS=320} [2024-11-09 07:10:43,305 INFO L277 CegarLoopForPetriNet]: 432 programPoint places, -29 predicate places. [2024-11-09 07:10:43,306 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 320 transitions, 879 flow [2024-11-09 07:10:43,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1278.25) internal successors, (5113), 4 states have internal predecessors, (5113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:43,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:43,306 INFO L204 CegarLoopForPetriNet]: trace histogram [40, 40, 40, 40, 40, 40, 40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:43,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2024-11-09 07:10:43,307 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2024-11-09 07:10:43,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:43,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1497450674, now seen corresponding path program 1 times [2024-11-09 07:10:43,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:43,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257508514] [2024-11-09 07:10:43,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:43,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:43,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:43,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:43,514 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2024-11-09 07:10:43,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2024-11-09 07:10:43,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2024-11-09 07:10:43,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2024-11-09 07:10:43,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2024-11-09 07:10:43,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2024-11-09 07:10:43,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2024-11-09 07:10:43,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2024-11-09 07:10:43,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2024-11-09 07:10:43,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2024-11-09 07:10:43,518 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2024-11-09 07:10:43,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2024-11-09 07:10:43,518 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:43,519 WARN L244 ceAbstractionStarter]: 39 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:43,519 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 40 thread instances. [2024-11-09 07:10:43,666 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:43,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1548 places, 1549 transitions, 6538 flow [2024-11-09 07:10:44,342 INFO L124 PetriNetUnfolderBase]: 207/2652 cut-off events. [2024-11-09 07:10:44,342 INFO L125 PetriNetUnfolderBase]: For 11440/11440 co-relation queries the response was YES. [2024-11-09 07:10:44,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3675 conditions, 2652 events. 207/2652 cut-off events. For 11440/11440 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7474 event pairs, 0 based on Foata normal form. 0/2318 useless extension candidates. Maximal degree in co-relation 3594. Up to 82 conditions per place. [2024-11-09 07:10:44,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 1548 places, 1549 transitions, 6538 flow [2024-11-09 07:10:44,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 362 transitions, 2447 flow [2024-11-09 07:10:44,373 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:44,373 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:44,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-09 07:10:44,374 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:44,374 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:44,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:44,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:44,374 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:44,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:44,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:44,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1161737269, now seen corresponding path program 1 times [2024-11-09 07:10:44,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:44,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103848109] [2024-11-09 07:10:44,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:44,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:44,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:44,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:44,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103848109] [2024-11-09 07:10:44,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103848109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:44,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:44,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296746668] [2024-11-09 07:10:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:44,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:44,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:44,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:44,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:44,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1256 out of 1549 [2024-11-09 07:10:44,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 362 transitions, 2447 flow. Second operand has 3 states, 3 states have (on average 1257.3333333333333) internal successors, (3772), 3 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:44,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:44,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1256 of 1549 [2024-11-09 07:10:44,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:44,985 INFO L124 PetriNetUnfolderBase]: 83/2035 cut-off events. [2024-11-09 07:10:44,985 INFO L125 PetriNetUnfolderBase]: For 12301/12301 co-relation queries the response was YES. [2024-11-09 07:10:45,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3314 conditions, 2035 events. 83/2035 cut-off events. For 12301/12301 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5759 event pairs, 41 based on Foata normal form. 83/1949 useless extension candidates. Maximal degree in co-relation 3171. Up to 293 conditions per place. [2024-11-09 07:10:45,016 INFO L140 encePairwiseOnDemand]: 1543/1549 looper letters, 50 selfloop transitions, 2 changer transitions 1/358 dead transitions. [2024-11-09 07:10:45,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 358 transitions, 2543 flow [2024-11-09 07:10:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:45,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3824 transitions. [2024-11-09 07:10:45,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228964923606628 [2024-11-09 07:10:45,018 INFO L175 Difference]: Start difference. First operand has 441 places, 362 transitions, 2447 flow. Second operand 3 states and 3824 transitions. [2024-11-09 07:10:45,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 358 transitions, 2543 flow [2024-11-09 07:10:45,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 358 transitions, 1060 flow, removed 741 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:45,036 INFO L231 Difference]: Finished difference. Result has 441 places, 357 transitions, 958 flow [2024-11-09 07:10:45,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=441, PETRI_TRANSITIONS=357} [2024-11-09 07:10:45,036 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, 0 predicate places. [2024-11-09 07:10:45,036 INFO L471 AbstractCegarLoop]: Abstraction has has 441 places, 357 transitions, 958 flow [2024-11-09 07:10:45,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1257.3333333333333) internal successors, (3772), 3 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:45,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:45,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:45,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2024-11-09 07:10:45,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:45,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:45,037 INFO L85 PathProgramCache]: Analyzing trace with hash -435474340, now seen corresponding path program 1 times [2024-11-09 07:10:45,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:45,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414727574] [2024-11-09 07:10:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:45,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:45,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:45,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:45,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414727574] [2024-11-09 07:10:45,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414727574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:45,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:45,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:45,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859536006] [2024-11-09 07:10:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:45,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:45,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:45,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:45,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:45,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 1549 [2024-11-09 07:10:45,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 357 transitions, 958 flow. Second operand has 3 states, 3 states have (on average 1175.0) internal successors, (3525), 3 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:45,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:45,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 1549 [2024-11-09 07:10:45,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:45,566 INFO L124 PetriNetUnfolderBase]: 42/1826 cut-off events. [2024-11-09 07:10:45,567 INFO L125 PetriNetUnfolderBase]: For 899/899 co-relation queries the response was YES. [2024-11-09 07:10:45,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2283 conditions, 1826 events. 42/1826 cut-off events. For 899/899 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4359 event pairs, 0 based on Foata normal form. 41/1784 useless extension candidates. Maximal degree in co-relation 2222. Up to 210 conditions per place. [2024-11-09 07:10:45,590 INFO L140 encePairwiseOnDemand]: 1543/1549 looper letters, 48 selfloop transitions, 1 changer transitions 24/352 dead transitions. [2024-11-09 07:10:45,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 352 transitions, 1050 flow [2024-11-09 07:10:45,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:45,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:45,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3578 transitions. [2024-11-09 07:10:45,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699591134064988 [2024-11-09 07:10:45,592 INFO L175 Difference]: Start difference. First operand has 441 places, 357 transitions, 958 flow. Second operand 3 states and 3578 transitions. [2024-11-09 07:10:45,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 352 transitions, 1050 flow [2024-11-09 07:10:45,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 352 transitions, 1046 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:45,595 INFO L231 Difference]: Finished difference. Result has 435 places, 328 transitions, 896 flow [2024-11-09 07:10:45,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=896, PETRI_PLACES=435, PETRI_TRANSITIONS=328} [2024-11-09 07:10:45,596 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -6 predicate places. [2024-11-09 07:10:45,596 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 328 transitions, 896 flow [2024-11-09 07:10:45,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1175.0) internal successors, (3525), 3 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:45,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:45,596 INFO L204 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:45,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2024-11-09 07:10:45,596 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:45,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2046182249, now seen corresponding path program 1 times [2024-11-09 07:10:45,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:45,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544391611] [2024-11-09 07:10:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:45,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 11240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11240 trivial. 0 not checked. [2024-11-09 07:10:45,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:45,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544391611] [2024-11-09 07:10:45,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544391611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:45,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:45,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:45,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689533160] [2024-11-09 07:10:45,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:45,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:45,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:45,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:45,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:45,864 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1298 out of 1549 [2024-11-09 07:10:45,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 328 transitions, 896 flow. Second operand has 4 states, 4 states have (on average 1309.5) internal successors, (5238), 4 states have internal predecessors, (5238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:45,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:45,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1298 of 1549 [2024-11-09 07:10:45,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:46,142 INFO L124 PetriNetUnfolderBase]: 0/841 cut-off events. [2024-11-09 07:10:46,142 INFO L125 PetriNetUnfolderBase]: For 898/898 co-relation queries the response was YES. [2024-11-09 07:10:46,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 841 events. 0/841 cut-off events. For 898/898 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 480 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 0. Up to 43 conditions per place. [2024-11-09 07:10:46,143 INFO L140 encePairwiseOnDemand]: 1545/1549 looper letters, 44 selfloop transitions, 3 changer transitions 0/327 dead transitions. [2024-11-09 07:10:46,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 327 transitions, 988 flow [2024-11-09 07:10:46,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:46,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5240 transitions. [2024-11-09 07:10:46,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8457069076823758 [2024-11-09 07:10:46,147 INFO L175 Difference]: Start difference. First operand has 435 places, 328 transitions, 896 flow. Second operand 4 states and 5240 transitions. [2024-11-09 07:10:46,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 327 transitions, 988 flow [2024-11-09 07:10:46,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 327 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:46,151 INFO L231 Difference]: Finished difference. Result has 412 places, 327 transitions, 899 flow [2024-11-09 07:10:46,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1549, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=899, PETRI_PLACES=412, PETRI_TRANSITIONS=327} [2024-11-09 07:10:46,152 INFO L277 CegarLoopForPetriNet]: 441 programPoint places, -29 predicate places. [2024-11-09 07:10:46,152 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 327 transitions, 899 flow [2024-11-09 07:10:46,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1309.5) internal successors, (5238), 4 states have internal predecessors, (5238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:46,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:46,152 INFO L204 CegarLoopForPetriNet]: trace histogram [41, 41, 41, 41, 41, 41, 41, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:46,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2024-11-09 07:10:46,153 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-09 07:10:46,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:46,153 INFO L85 PathProgramCache]: Analyzing trace with hash -527476694, now seen corresponding path program 1 times [2024-11-09 07:10:46,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:46,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606967900] [2024-11-09 07:10:46,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:46,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:46,241 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:46,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:46,476 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (41 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2024-11-09 07:10:46,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 48 remaining) [2024-11-09 07:10:46,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2024-11-09 07:10:46,478 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2024-11-09 07:10:46,479 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2024-11-09 07:10:46,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2024-11-09 07:10:46,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2024-11-09 07:10:46,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2024-11-09 07:10:46,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2024-11-09 07:10:46,480 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2024-11-09 07:10:46,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2024-11-09 07:10:46,480 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:46,481 WARN L244 ceAbstractionStarter]: 40 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:46,481 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 41 thread instances. [2024-11-09 07:10:46,655 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:46,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1585 places, 1586 transitions, 6780 flow [2024-11-09 07:10:47,490 INFO L124 PetriNetUnfolderBase]: 212/2716 cut-off events. [2024-11-09 07:10:47,490 INFO L125 PetriNetUnfolderBase]: For 12300/12300 co-relation queries the response was YES. [2024-11-09 07:10:47,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3785 conditions, 2716 events. 212/2716 cut-off events. For 12300/12300 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7689 event pairs, 0 based on Foata normal form. 0/2374 useless extension candidates. Maximal degree in co-relation 3702. Up to 84 conditions per place. [2024-11-09 07:10:47,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 1585 places, 1586 transitions, 6780 flow [2024-11-09 07:10:47,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 450 places, 369 transitions, 2545 flow [2024-11-09 07:10:47,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:47,535 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:47,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-09 07:10:47,536 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:47,536 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:47,536 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:47,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:47,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:47,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:47,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:47,537 INFO L85 PathProgramCache]: Analyzing trace with hash 82765707, now seen corresponding path program 1 times [2024-11-09 07:10:47,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:47,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790579216] [2024-11-09 07:10:47,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:47,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:47,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790579216] [2024-11-09 07:10:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790579216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:47,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:47,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:47,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558947657] [2024-11-09 07:10:47,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:47,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:47,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:47,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:47,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:47,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1286 out of 1586 [2024-11-09 07:10:47,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 369 transitions, 2545 flow. Second operand has 3 states, 3 states have (on average 1287.3333333333333) internal successors, (3862), 3 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:47,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:47,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1286 of 1586 [2024-11-09 07:10:47,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:48,170 INFO L124 PetriNetUnfolderBase]: 85/2084 cut-off events. [2024-11-09 07:10:48,171 INFO L125 PetriNetUnfolderBase]: For 13203/13203 co-relation queries the response was YES. [2024-11-09 07:10:48,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 2084 events. 85/2084 cut-off events. For 13203/13203 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 5974 event pairs, 42 based on Foata normal form. 85/1996 useless extension candidates. Maximal degree in co-relation 3271. Up to 300 conditions per place. [2024-11-09 07:10:48,202 INFO L140 encePairwiseOnDemand]: 1580/1586 looper letters, 51 selfloop transitions, 2 changer transitions 1/365 dead transitions. [2024-11-09 07:10:48,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 365 transitions, 2643 flow [2024-11-09 07:10:48,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:48,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3915 transitions. [2024-11-09 07:10:48,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8228247162673392 [2024-11-09 07:10:48,204 INFO L175 Difference]: Start difference. First operand has 450 places, 369 transitions, 2545 flow. Second operand 3 states and 3915 transitions. [2024-11-09 07:10:48,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 365 transitions, 2643 flow [2024-11-09 07:10:48,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 365 transitions, 1082 flow, removed 780 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:48,222 INFO L231 Difference]: Finished difference. Result has 450 places, 364 transitions, 978 flow [2024-11-09 07:10:48,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=978, PETRI_PLACES=450, PETRI_TRANSITIONS=364} [2024-11-09 07:10:48,223 INFO L277 CegarLoopForPetriNet]: 450 programPoint places, 0 predicate places. [2024-11-09 07:10:48,223 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 364 transitions, 978 flow [2024-11-09 07:10:48,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1287.3333333333333) internal successors, (3862), 3 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:48,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:48,223 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:48,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2024-11-09 07:10:48,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:48,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash 396559502, now seen corresponding path program 1 times [2024-11-09 07:10:48,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:48,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883682422] [2024-11-09 07:10:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:48,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:48,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:48,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883682422] [2024-11-09 07:10:48,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883682422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:48,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:48,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:48,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423041011] [2024-11-09 07:10:48,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:48,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:48,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:48,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:48,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:48,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1202 out of 1586 [2024-11-09 07:10:48,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 364 transitions, 978 flow. Second operand has 3 states, 3 states have (on average 1203.0) internal successors, (3609), 3 states have internal predecessors, (3609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:48,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:48,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1202 of 1586 [2024-11-09 07:10:48,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:48,765 INFO L124 PetriNetUnfolderBase]: 43/1870 cut-off events. [2024-11-09 07:10:48,765 INFO L125 PetriNetUnfolderBase]: For 942/942 co-relation queries the response was YES. [2024-11-09 07:10:48,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 1870 events. 43/1870 cut-off events. For 942/942 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4423 event pairs, 0 based on Foata normal form. 42/1827 useless extension candidates. Maximal degree in co-relation 2276. Up to 215 conditions per place. [2024-11-09 07:10:48,790 INFO L140 encePairwiseOnDemand]: 1580/1586 looper letters, 49 selfloop transitions, 1 changer transitions 24/359 dead transitions. [2024-11-09 07:10:48,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 359 transitions, 1072 flow [2024-11-09 07:10:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:48,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3663 transitions. [2024-11-09 07:10:48,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698612862547288 [2024-11-09 07:10:48,792 INFO L175 Difference]: Start difference. First operand has 450 places, 364 transitions, 978 flow. Second operand 3 states and 3663 transitions. [2024-11-09 07:10:48,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 359 transitions, 1072 flow [2024-11-09 07:10:48,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 359 transitions, 1068 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:48,796 INFO L231 Difference]: Finished difference. Result has 444 places, 335 transitions, 916 flow [2024-11-09 07:10:48,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=964, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=916, PETRI_PLACES=444, PETRI_TRANSITIONS=335} [2024-11-09 07:10:48,796 INFO L277 CegarLoopForPetriNet]: 450 programPoint places, -6 predicate places. [2024-11-09 07:10:48,796 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 335 transitions, 916 flow [2024-11-09 07:10:48,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1203.0) internal successors, (3609), 3 states have internal predecessors, (3609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:48,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:48,797 INFO L204 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:48,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2024-11-09 07:10:48,797 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:48,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:48,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1442962455, now seen corresponding path program 1 times [2024-11-09 07:10:48,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:48,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050335556] [2024-11-09 07:10:48,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:48,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:48,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11808 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11808 trivial. 0 not checked. [2024-11-09 07:10:48,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:48,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050335556] [2024-11-09 07:10:48,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050335556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:48,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:48,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:48,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992315921] [2024-11-09 07:10:48,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:48,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:48,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:48,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:48,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:49,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1329 out of 1586 [2024-11-09 07:10:49,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 335 transitions, 916 flow. Second operand has 4 states, 4 states have (on average 1340.75) internal successors, (5363), 4 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:49,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:49,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1329 of 1586 [2024-11-09 07:10:49,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:49,218 INFO L124 PetriNetUnfolderBase]: 0/861 cut-off events. [2024-11-09 07:10:49,218 INFO L125 PetriNetUnfolderBase]: For 941/941 co-relation queries the response was YES. [2024-11-09 07:10:49,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 861 events. 0/861 cut-off events. For 941/941 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 491 event pairs, 0 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 0. Up to 44 conditions per place. [2024-11-09 07:10:49,219 INFO L140 encePairwiseOnDemand]: 1582/1586 looper letters, 45 selfloop transitions, 3 changer transitions 0/334 dead transitions. [2024-11-09 07:10:49,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 334 transitions, 1010 flow [2024-11-09 07:10:49,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:49,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5365 transitions. [2024-11-09 07:10:49,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456809583858764 [2024-11-09 07:10:49,221 INFO L175 Difference]: Start difference. First operand has 444 places, 335 transitions, 916 flow. Second operand 4 states and 5365 transitions. [2024-11-09 07:10:49,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 334 transitions, 1010 flow [2024-11-09 07:10:49,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 334 transitions, 1009 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:49,224 INFO L231 Difference]: Finished difference. Result has 421 places, 334 transitions, 919 flow [2024-11-09 07:10:49,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1586, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=919, PETRI_PLACES=421, PETRI_TRANSITIONS=334} [2024-11-09 07:10:49,225 INFO L277 CegarLoopForPetriNet]: 450 programPoint places, -29 predicate places. [2024-11-09 07:10:49,225 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 334 transitions, 919 flow [2024-11-09 07:10:49,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1340.75) internal successors, (5363), 4 states have internal predecessors, (5363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:49,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:49,225 INFO L204 CegarLoopForPetriNet]: trace histogram [42, 42, 42, 42, 42, 42, 42, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:49,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2024-11-09 07:10:49,226 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2024-11-09 07:10:49,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:49,226 INFO L85 PathProgramCache]: Analyzing trace with hash -26744530, now seen corresponding path program 1 times [2024-11-09 07:10:49,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:49,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061272382] [2024-11-09 07:10:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:49,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:49,287 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:49,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:49,464 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:49,464 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-11-09 07:10:49,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-11-09 07:10:49,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-11-09 07:10:49,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-11-09 07:10:49,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-11-09 07:10:49,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-11-09 07:10:49,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2024-11-09 07:10:49,468 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:49,468 WARN L244 ceAbstractionStarter]: 41 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:49,468 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 42 thread instances. [2024-11-09 07:10:49,615 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:49,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1622 places, 1623 transitions, 7026 flow [2024-11-09 07:10:50,327 INFO L124 PetriNetUnfolderBase]: 217/2780 cut-off events. [2024-11-09 07:10:50,327 INFO L125 PetriNetUnfolderBase]: For 13202/13202 co-relation queries the response was YES. [2024-11-09 07:10:50,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3896 conditions, 2780 events. 217/2780 cut-off events. For 13202/13202 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 7779 event pairs, 0 based on Foata normal form. 0/2430 useless extension candidates. Maximal degree in co-relation 3811. Up to 86 conditions per place. [2024-11-09 07:10:50,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 1622 places, 1623 transitions, 7026 flow [2024-11-09 07:10:50,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 459 places, 376 transitions, 2645 flow [2024-11-09 07:10:50,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:50,377 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:50,377 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-09 07:10:50,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:50,378 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:50,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:50,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:50,378 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:50,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:50,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:50,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1251550293, now seen corresponding path program 1 times [2024-11-09 07:10:50,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:50,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878517402] [2024-11-09 07:10:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:50,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:50,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:50,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:50,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878517402] [2024-11-09 07:10:50,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878517402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:50,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:50,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:50,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295389186] [2024-11-09 07:10:50,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:50,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:50,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:50,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:50,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:50,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1316 out of 1623 [2024-11-09 07:10:50,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 376 transitions, 2645 flow. Second operand has 3 states, 3 states have (on average 1317.3333333333333) internal successors, (3952), 3 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:50,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:50,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1316 of 1623 [2024-11-09 07:10:50,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:51,273 INFO L124 PetriNetUnfolderBase]: 87/2133 cut-off events. [2024-11-09 07:10:51,273 INFO L125 PetriNetUnfolderBase]: For 14148/14148 co-relation queries the response was YES. [2024-11-09 07:10:51,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3517 conditions, 2133 events. 87/2133 cut-off events. For 14148/14148 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 5964 event pairs, 43 based on Foata normal form. 44/2000 useless extension candidates. Maximal degree in co-relation 3372. Up to 307 conditions per place. [2024-11-09 07:10:51,294 INFO L140 encePairwiseOnDemand]: 1617/1623 looper letters, 52 selfloop transitions, 2 changer transitions 1/372 dead transitions. [2024-11-09 07:10:51,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 372 transitions, 2745 flow [2024-11-09 07:10:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:51,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4006 transitions. [2024-11-09 07:10:51,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.822756212774697 [2024-11-09 07:10:51,297 INFO L175 Difference]: Start difference. First operand has 459 places, 376 transitions, 2645 flow. Second operand 3 states and 4006 transitions. [2024-11-09 07:10:51,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 372 transitions, 2745 flow [2024-11-09 07:10:51,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 372 transitions, 1104 flow, removed 820 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:51,321 INFO L231 Difference]: Finished difference. Result has 459 places, 371 transitions, 998 flow [2024-11-09 07:10:51,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=998, PETRI_PLACES=459, PETRI_TRANSITIONS=371} [2024-11-09 07:10:51,321 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, 0 predicate places. [2024-11-09 07:10:51,322 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 371 transitions, 998 flow [2024-11-09 07:10:51,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1317.3333333333333) internal successors, (3952), 3 states have internal predecessors, (3952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:51,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:51,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:51,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2024-11-09 07:10:51,322 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:51,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:51,323 INFO L85 PathProgramCache]: Analyzing trace with hash -287460379, now seen corresponding path program 1 times [2024-11-09 07:10:51,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:51,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306135787] [2024-11-09 07:10:51,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:51,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:51,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:51,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306135787] [2024-11-09 07:10:51,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306135787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:51,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:51,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:51,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378181404] [2024-11-09 07:10:51,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:51,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:51,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:51,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:51,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:51,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1230 out of 1623 [2024-11-09 07:10:51,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 371 transitions, 998 flow. Second operand has 3 states, 3 states have (on average 1231.0) internal successors, (3693), 3 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:51,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:51,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1230 of 1623 [2024-11-09 07:10:51,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:52,128 INFO L124 PetriNetUnfolderBase]: 44/1914 cut-off events. [2024-11-09 07:10:52,128 INFO L125 PetriNetUnfolderBase]: For 986/986 co-relation queries the response was YES. [2024-11-09 07:10:52,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 1914 events. 44/1914 cut-off events. For 986/986 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 4487 event pairs, 0 based on Foata normal form. 43/1870 useless extension candidates. Maximal degree in co-relation 2330. Up to 220 conditions per place. [2024-11-09 07:10:52,151 INFO L140 encePairwiseOnDemand]: 1617/1623 looper letters, 50 selfloop transitions, 1 changer transitions 24/366 dead transitions. [2024-11-09 07:10:52,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 366 transitions, 1094 flow [2024-11-09 07:10:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:52,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3748 transitions. [2024-11-09 07:10:52,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697679194906552 [2024-11-09 07:10:52,154 INFO L175 Difference]: Start difference. First operand has 459 places, 371 transitions, 998 flow. Second operand 3 states and 3748 transitions. [2024-11-09 07:10:52,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 366 transitions, 1094 flow [2024-11-09 07:10:52,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 366 transitions, 1090 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:52,159 INFO L231 Difference]: Finished difference. Result has 453 places, 342 transitions, 936 flow [2024-11-09 07:10:52,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=453, PETRI_TRANSITIONS=342} [2024-11-09 07:10:52,159 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -6 predicate places. [2024-11-09 07:10:52,159 INFO L471 AbstractCegarLoop]: Abstraction has has 453 places, 342 transitions, 936 flow [2024-11-09 07:10:52,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1231.0) internal successors, (3693), 3 states have internal predecessors, (3693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:52,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:52,160 INFO L204 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:52,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2024-11-09 07:10:52,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:52,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:52,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1421928674, now seen corresponding path program 1 times [2024-11-09 07:10:52,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:52,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231310526] [2024-11-09 07:10:52,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:52,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 12390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12390 trivial. 0 not checked. [2024-11-09 07:10:52,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:52,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231310526] [2024-11-09 07:10:52,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231310526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:52,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:52,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:52,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623308470] [2024-11-09 07:10:52,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:52,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:52,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:52,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:52,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:52,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1360 out of 1623 [2024-11-09 07:10:52,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 342 transitions, 936 flow. Second operand has 4 states, 4 states have (on average 1372.0) internal successors, (5488), 4 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:52,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:52,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1360 of 1623 [2024-11-09 07:10:52,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:52,706 INFO L124 PetriNetUnfolderBase]: 0/881 cut-off events. [2024-11-09 07:10:52,706 INFO L125 PetriNetUnfolderBase]: For 985/985 co-relation queries the response was YES. [2024-11-09 07:10:52,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 881 events. 0/881 cut-off events. For 985/985 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 504 event pairs, 0 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 0. Up to 45 conditions per place. [2024-11-09 07:10:52,707 INFO L140 encePairwiseOnDemand]: 1619/1623 looper letters, 46 selfloop transitions, 3 changer transitions 0/341 dead transitions. [2024-11-09 07:10:52,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 341 transitions, 1032 flow [2024-11-09 07:10:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5490 transitions. [2024-11-09 07:10:52,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456561922365989 [2024-11-09 07:10:52,709 INFO L175 Difference]: Start difference. First operand has 453 places, 342 transitions, 936 flow. Second operand 4 states and 5490 transitions. [2024-11-09 07:10:52,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 341 transitions, 1032 flow [2024-11-09 07:10:52,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 341 transitions, 1031 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:52,713 INFO L231 Difference]: Finished difference. Result has 430 places, 341 transitions, 939 flow [2024-11-09 07:10:52,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1623, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=430, PETRI_TRANSITIONS=341} [2024-11-09 07:10:52,713 INFO L277 CegarLoopForPetriNet]: 459 programPoint places, -29 predicate places. [2024-11-09 07:10:52,713 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 341 transitions, 939 flow [2024-11-09 07:10:52,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1372.0) internal successors, (5488), 4 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:52,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:52,714 INFO L204 CegarLoopForPetriNet]: trace histogram [43, 43, 43, 43, 43, 43, 43, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:52,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2024-11-09 07:10:52,714 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 07:10:52,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:52,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1692288286, now seen corresponding path program 1 times [2024-11-09 07:10:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:52,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656403330] [2024-11-09 07:10:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:52,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:53,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:53,028 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:53,028 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 50 remaining) [2024-11-09 07:10:53,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 50 remaining) [2024-11-09 07:10:53,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2024-11-09 07:10:53,030 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2024-11-09 07:10:53,031 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2024-11-09 07:10:53,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2024-11-09 07:10:53,031 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:53,032 WARN L244 ceAbstractionStarter]: 42 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:53,032 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 43 thread instances. [2024-11-09 07:10:53,168 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:53,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1659 places, 1660 transitions, 7276 flow [2024-11-09 07:10:53,766 INFO L124 PetriNetUnfolderBase]: 222/2844 cut-off events. [2024-11-09 07:10:53,766 INFO L125 PetriNetUnfolderBase]: For 14147/14147 co-relation queries the response was YES. [2024-11-09 07:10:53,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4008 conditions, 2844 events. 222/2844 cut-off events. For 14147/14147 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8209 event pairs, 0 based on Foata normal form. 0/2486 useless extension candidates. Maximal degree in co-relation 3921. Up to 88 conditions per place. [2024-11-09 07:10:53,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 1659 places, 1660 transitions, 7276 flow [2024-11-09 07:10:53,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 383 transitions, 2747 flow [2024-11-09 07:10:53,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:53,818 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:53,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-09 07:10:53,819 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:53,819 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:53,819 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:53,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:53,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:53,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-09 07:10:53,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:53,820 INFO L85 PathProgramCache]: Analyzing trace with hash -869717973, now seen corresponding path program 1 times [2024-11-09 07:10:53,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:53,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613604715] [2024-11-09 07:10:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:53,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:53,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:53,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:53,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613604715] [2024-11-09 07:10:53,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613604715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:53,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:53,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:53,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114251416] [2024-11-09 07:10:53,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:53,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:53,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:53,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:53,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:53,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1346 out of 1660 [2024-11-09 07:10:54,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 383 transitions, 2747 flow. Second operand has 3 states, 3 states have (on average 1347.3333333333333) internal successors, (4042), 3 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:54,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:54,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1346 of 1660 [2024-11-09 07:10:54,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:54,522 INFO L124 PetriNetUnfolderBase]: 89/2182 cut-off events. [2024-11-09 07:10:54,522 INFO L125 PetriNetUnfolderBase]: For 15137/15137 co-relation queries the response was YES. [2024-11-09 07:10:54,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3620 conditions, 2182 events. 89/2182 cut-off events. For 15137/15137 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 6027 event pairs, 44 based on Foata normal form. 89/2090 useless extension candidates. Maximal degree in co-relation 3474. Up to 314 conditions per place. [2024-11-09 07:10:54,558 INFO L140 encePairwiseOnDemand]: 1654/1660 looper letters, 53 selfloop transitions, 2 changer transitions 1/379 dead transitions. [2024-11-09 07:10:54,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 379 transitions, 2849 flow [2024-11-09 07:10:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:54,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:54,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4097 transitions. [2024-11-09 07:10:54,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8226907630522088 [2024-11-09 07:10:54,560 INFO L175 Difference]: Start difference. First operand has 468 places, 383 transitions, 2747 flow. Second operand 3 states and 4097 transitions. [2024-11-09 07:10:54,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 379 transitions, 2849 flow [2024-11-09 07:10:54,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 379 transitions, 1126 flow, removed 861 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:54,582 INFO L231 Difference]: Finished difference. Result has 468 places, 378 transitions, 1018 flow [2024-11-09 07:10:54,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=1016, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1018, PETRI_PLACES=468, PETRI_TRANSITIONS=378} [2024-11-09 07:10:54,582 INFO L277 CegarLoopForPetriNet]: 468 programPoint places, 0 predicate places. [2024-11-09 07:10:54,582 INFO L471 AbstractCegarLoop]: Abstraction has has 468 places, 378 transitions, 1018 flow [2024-11-09 07:10:54,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1347.3333333333333) internal successors, (4042), 3 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:54,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:54,583 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:54,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2024-11-09 07:10:54,583 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-09 07:10:54,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:54,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1807433313, now seen corresponding path program 1 times [2024-11-09 07:10:54,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:54,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237839715] [2024-11-09 07:10:54,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:54,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:54,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:54,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:54,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237839715] [2024-11-09 07:10:54,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237839715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:54,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:54,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:54,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839631302] [2024-11-09 07:10:54,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:54,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:54,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:54,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:54,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:54,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1258 out of 1660 [2024-11-09 07:10:54,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 378 transitions, 1018 flow. Second operand has 3 states, 3 states have (on average 1259.0) internal successors, (3777), 3 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:54,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:54,715 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1258 of 1660 [2024-11-09 07:10:54,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:55,173 INFO L124 PetriNetUnfolderBase]: 45/1958 cut-off events. [2024-11-09 07:10:55,173 INFO L125 PetriNetUnfolderBase]: For 1031/1031 co-relation queries the response was YES. [2024-11-09 07:10:55,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2448 conditions, 1958 events. 45/1958 cut-off events. For 1031/1031 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 4466 event pairs, 0 based on Foata normal form. 44/1913 useless extension candidates. Maximal degree in co-relation 2384. Up to 225 conditions per place. [2024-11-09 07:10:55,200 INFO L140 encePairwiseOnDemand]: 1654/1660 looper letters, 51 selfloop transitions, 1 changer transitions 24/373 dead transitions. [2024-11-09 07:10:55,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 373 transitions, 1116 flow [2024-11-09 07:10:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:55,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:55,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3833 transitions. [2024-11-09 07:10:55,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7696787148594377 [2024-11-09 07:10:55,203 INFO L175 Difference]: Start difference. First operand has 468 places, 378 transitions, 1018 flow. Second operand 3 states and 3833 transitions. [2024-11-09 07:10:55,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 373 transitions, 1116 flow [2024-11-09 07:10:55,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 373 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:10:55,207 INFO L231 Difference]: Finished difference. Result has 462 places, 349 transitions, 956 flow [2024-11-09 07:10:55,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=956, PETRI_PLACES=462, PETRI_TRANSITIONS=349} [2024-11-09 07:10:55,207 INFO L277 CegarLoopForPetriNet]: 468 programPoint places, -6 predicate places. [2024-11-09 07:10:55,207 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 349 transitions, 956 flow [2024-11-09 07:10:55,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1259.0) internal successors, (3777), 3 states have internal predecessors, (3777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:55,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:55,208 INFO L204 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:55,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2024-11-09 07:10:55,208 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-09 07:10:55,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1169345314, now seen corresponding path program 1 times [2024-11-09 07:10:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:55,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292489216] [2024-11-09 07:10:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:55,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12986 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12986 trivial. 0 not checked. [2024-11-09 07:10:55,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:55,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292489216] [2024-11-09 07:10:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292489216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:55,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:55,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606589621] [2024-11-09 07:10:55,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:55,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:55,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:55,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:55,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1391 out of 1660 [2024-11-09 07:10:55,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 349 transitions, 956 flow. Second operand has 4 states, 4 states have (on average 1403.25) internal successors, (5613), 4 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:55,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:55,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1391 of 1660 [2024-11-09 07:10:55,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:55,693 INFO L124 PetriNetUnfolderBase]: 0/901 cut-off events. [2024-11-09 07:10:55,694 INFO L125 PetriNetUnfolderBase]: For 1030/1030 co-relation queries the response was YES. [2024-11-09 07:10:55,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 901 events. 0/901 cut-off events. For 1030/1030 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 516 event pairs, 0 based on Foata normal form. 0/901 useless extension candidates. Maximal degree in co-relation 0. Up to 46 conditions per place. [2024-11-09 07:10:55,695 INFO L140 encePairwiseOnDemand]: 1656/1660 looper letters, 47 selfloop transitions, 3 changer transitions 0/348 dead transitions. [2024-11-09 07:10:55,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 348 transitions, 1054 flow [2024-11-09 07:10:55,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 07:10:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5615 transitions. [2024-11-09 07:10:55,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8456325301204819 [2024-11-09 07:10:55,697 INFO L175 Difference]: Start difference. First operand has 462 places, 349 transitions, 956 flow. Second operand 4 states and 5615 transitions. [2024-11-09 07:10:55,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 348 transitions, 1054 flow [2024-11-09 07:10:55,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 348 transitions, 1053 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:55,701 INFO L231 Difference]: Finished difference. Result has 439 places, 348 transitions, 959 flow [2024-11-09 07:10:55,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1660, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=959, PETRI_PLACES=439, PETRI_TRANSITIONS=348} [2024-11-09 07:10:55,702 INFO L277 CegarLoopForPetriNet]: 468 programPoint places, -29 predicate places. [2024-11-09 07:10:55,702 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 348 transitions, 959 flow [2024-11-09 07:10:55,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1403.25) internal successors, (5613), 4 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:55,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:55,703 INFO L204 CegarLoopForPetriNet]: trace histogram [44, 44, 44, 44, 44, 44, 44, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:55,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2024-11-09 07:10:55,703 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-09 07:10:55,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:55,703 INFO L85 PathProgramCache]: Analyzing trace with hash -156600998, now seen corresponding path program 1 times [2024-11-09 07:10:55,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:55,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681729953] [2024-11-09 07:10:55,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:55,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:55,773 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:10:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:10:55,963 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:10:55,963 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:10:55,963 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-09 07:10:55,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-09 07:10:55,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-09 07:10:55,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-09 07:10:55,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-09 07:10:55,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-09 07:10:55,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-09 07:10:55,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-09 07:10:55,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-09 07:10:55,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2024-11-09 07:10:55,966 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:10:55,966 WARN L244 ceAbstractionStarter]: 43 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:10:55,966 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 44 thread instances. [2024-11-09 07:10:56,108 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:10:56,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1696 places, 1697 transitions, 7530 flow [2024-11-09 07:10:56,793 INFO L124 PetriNetUnfolderBase]: 227/2908 cut-off events. [2024-11-09 07:10:56,794 INFO L125 PetriNetUnfolderBase]: For 15136/15136 co-relation queries the response was YES. [2024-11-09 07:10:56,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2908 events. 227/2908 cut-off events. For 15136/15136 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 8324 event pairs, 0 based on Foata normal form. 0/2542 useless extension candidates. Maximal degree in co-relation 4032. Up to 90 conditions per place. [2024-11-09 07:10:56,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 1696 places, 1697 transitions, 7530 flow [2024-11-09 07:10:56,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 477 places, 390 transitions, 2851 flow [2024-11-09 07:10:56,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:10:56,845 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@27cf3ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:10:56,845 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-09 07:10:56,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:10:56,846 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-09 07:10:56,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:10:56,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:56,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:56,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-09 07:10:56,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:56,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1228262667, now seen corresponding path program 1 times [2024-11-09 07:10:56,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:56,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795892241] [2024-11-09 07:10:56,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:56,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:56,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:56,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:56,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795892241] [2024-11-09 07:10:56,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795892241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:56,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:56,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:56,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424550735] [2024-11-09 07:10:56,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:56,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:56,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:56,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:57,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1376 out of 1697 [2024-11-09 07:10:57,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 390 transitions, 2851 flow. Second operand has 3 states, 3 states have (on average 1377.3333333333333) internal successors, (4132), 3 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:57,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:10:57,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1376 of 1697 [2024-11-09 07:10:57,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:10:57,544 INFO L124 PetriNetUnfolderBase]: 91/2231 cut-off events. [2024-11-09 07:10:57,544 INFO L125 PetriNetUnfolderBase]: For 16171/16171 co-relation queries the response was YES. [2024-11-09 07:10:57,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3724 conditions, 2231 events. 91/2231 cut-off events. For 16171/16171 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 6240 event pairs, 45 based on Foata normal form. 46/2092 useless extension candidates. Maximal degree in co-relation 3577. Up to 321 conditions per place. [2024-11-09 07:10:57,582 INFO L140 encePairwiseOnDemand]: 1691/1697 looper letters, 54 selfloop transitions, 2 changer transitions 1/386 dead transitions. [2024-11-09 07:10:57,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 386 transitions, 2955 flow [2024-11-09 07:10:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:10:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4188 transitions. [2024-11-09 07:10:57,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8226281673541543 [2024-11-09 07:10:57,584 INFO L175 Difference]: Start difference. First operand has 477 places, 390 transitions, 2851 flow. Second operand 3 states and 4188 transitions. [2024-11-09 07:10:57,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 386 transitions, 2955 flow [2024-11-09 07:10:57,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 386 transitions, 1148 flow, removed 903 selfloop flow, removed 1 redundant places. [2024-11-09 07:10:57,605 INFO L231 Difference]: Finished difference. Result has 477 places, 385 transitions, 1038 flow [2024-11-09 07:10:57,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1697, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1038, PETRI_PLACES=477, PETRI_TRANSITIONS=385} [2024-11-09 07:10:57,606 INFO L277 CegarLoopForPetriNet]: 477 programPoint places, 0 predicate places. [2024-11-09 07:10:57,606 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 385 transitions, 1038 flow [2024-11-09 07:10:57,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1377.3333333333333) internal successors, (4132), 3 states have internal predecessors, (4132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:10:57,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:10:57,606 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:57,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2024-11-09 07:10:57,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-11-09 07:10:57,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1908694014, now seen corresponding path program 1 times [2024-11-09 07:10:57,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:10:57,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080773382] [2024-11-09 07:10:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:10:57,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:10:57,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080773382] [2024-11-09 07:10:57,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080773382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:57,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:57,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:10:57,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007625721] [2024-11-09 07:10:57,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:57,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:57,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:10:57,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:57,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6